Khalid ibn al-Walid
Encyclopedia
Khālid ibn al-Walīd also known as Sayf Allāh al-Maslūl (the Drawn Sword of God), was a companion
Sahabah
In Islam, the ' were the companions, disciples, scribes and family of the Islamic prophet...

 of the Islamic prophet
Prophets of Islam
Muslims identify the Prophets of Islam as those humans chosen by God and given revelation to deliver to mankind. Muslims believe that every prophet was given a belief to worship God and their respective followers believed it as well...

 Muhammad
Muhammad
Muhammad |ligature]] at U+FDF4 ;Arabic pronunciation varies regionally; the first vowel ranges from ~~; the second and the last vowel: ~~~. There are dialects which have no stress. In Egypt, it is pronounced not in religious contexts...

. He is noted for his military tactics and prowess, commanding the forces of Medina and those of his immediate successors of the Rashidun Caliphate
Rashidun Caliphate
The Rashidun Caliphate , comprising the first four caliphs in Islam's history, was founded after Muhammad's death in 632, Year 10 A.H.. At its height, the Caliphate extended from the Arabian Peninsula, to the Levant, Caucasus and North Africa in the west, to the Iranian highlands and Central Asia...

; Abu Bakr
Abu Bakr
Abu Bakr was a senior companion and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632-634 CE when he became the first Muslim Caliph following Muhammad's death...

 and Umar
Umar
`Umar ibn al-Khattāb c. 2 November , was a leading companion and adviser to the Islamic prophet Muhammad who later became the second Muslim Caliph after Muhammad's death....

. It was under his military leadership that Arabia, for the first time in history, was united under a single political entity, the Caliphate
Caliphate
The term caliphate, "dominion of a caliph " , refers to the first system of government established in Islam and represented the political unity of the Muslim Ummah...

. He was victorious in over a hundred battles, against the numerically superior forces of the Byzantine-Roman Empire
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

, Sassanid-Persian Empire
Sassanid Empire
The Sassanid Empire , known to its inhabitants as Ērānshahr and Ērān in Middle Persian and resulting in the New Persian terms Iranshahr and Iran , was the last pre-Islamic Persian Empire, ruled by the Sasanian Dynasty from 224 to 651...

, and their allies, in addition to other Arab tribes. His strategic achievements include the conquest of Arabia
Arabian Peninsula
The Arabian Peninsula is a land mass situated north-east of Africa. Also known as Arabia or the Arabian subcontinent, it is the world's largest peninsula and covers 3,237,500 km2...

, Persian Mesopotamia
Islamic conquest of Persia
The Muslim conquest of Persia led to the end of the Sassanid Empire in 644, the fall of Sassanid dynasty in 651 and the eventual decline of the Zoroastrian religion in Persia...

 and Roman Syria
Muslim conquest of Syria
The Muslim conquest of Syria occurred in the first half of the 7th century, and refers to the region known as the Bilad al-Sham, the Levant, or Greater Syria...

 within several years from 632 to 636. He is also remembered for his decisive victories at Yamamah
Battle of Yamama
The Battle of Yamama was fought in December AD 632 as part as the Ridda or apostate wars on the plain of Aqraba in the region of Yamama between the forces of Muslim Caliph Abu Bakr and Musaylimah, an apostate.-Background:...

, Ullais
Battle of Ullais
The Battle of Ullais was fought between the forces of the Rashidun Caliphate and the Sassanid Persian Empire in the middle of May 633 A.D in Iraq, and is sometimes referred to as the Battle of Blood River since, as a result of the battle, there were enormous amounts of Sassanian and Arab Christian...

, and Firaz
Battle of Firaz
The Battle of Firaz was the last battle of the Muslim Arab commander Khalid ibn al-Walid in Mesopotamia against the combined forces of the Byzantine Roman Empire, Sassanid Persian Empire, and Christian Arabs...

, and his tactical successes at Walaja
Battle of Walaja
The Battle of Walaja was a battle fought in Mesopotamia in May 633 between the Rashidun Caliphate army under Khalid ibn al-Walid and al muthanna ibn haarithah against the Persian Empire and its Arab allies...

 and Yarmouk
Battle of Yarmouk
The Battle of Yarmouk was a major battle between the Muslim Arab forces of the Rashidun Caliphate and the armies of the East Roman-Byzantine Empire. The battle consisted of a series of engagements that lasted for six days in August 636, near the Yarmouk River, along what is today the border...

.

Khalid ibn al-Walid (Khalid son of al-Walid) was from the Mecca
Mecca
Mecca is a city in the Hijaz and the capital of Makkah province in Saudi Arabia. The city is located inland from Jeddah in a narrow valley at a height of above sea level...

n tribe of Quraysh, from a clan that initially opposed Muhammad. He played a vital role in the Meccan victory at the Battle of Uhud
Battle of Uhud
The Battle of Uhud was fought on March 19, 625 at the valley located in front of Mount Uhud, in what is now northwestern Arabia. It occurred between a force from the Muslim community of Medina led by the Islamic prophet Muhammad, and a force led by Abu Sufyan ibn Harb from Mecca, the town from...

. He converted to Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

, and joined Muhammad after the Treaty of Hudaybiyyah
Treaty of Hudaybiyyah
The Treaty of Hudaybiyyah is the treaty that took place between the state of Medina and the Quraishi tribe of Mecca in March 628CE .-Background:...

 and participated in various expeditions for him, such as the Battle of Mu'tah
Battle of Mu'tah
The Battle of Mu'tah was fought in 629 , near the village of Mu'tah, east of the Jordan River and Karak in Karak Governorate, between an army sent by the Islamic prophet, Muhammad, and an army of the Byzantine Empire- The Eastern Romans.In Muslim histories, the battle is usually described as the...

. After Muhammad's death, he played a key role in commanding Medina
Medina
Medina , or ; also transliterated as Madinah, or madinat al-nabi "the city of the prophet") is a city in the Hejaz region of western Saudi Arabia, and serves as the capital of the Al Madinah Province. It is the second holiest city in Islam, and the burial place of the Islamic Prophet Muhammad, and...

n forces for Abu Bakr in the Ridda wars
Ridda wars
The Ridda wars , also known as the Wars of Apostasy, were a series of military campaigns against the rebellion of several Arabian tribes launched by the Caliph Abu Bakr during 632 and 633 AD, after prophet Muhammad died....

, conquering central Arabia and subduing Arab tribes. He captured the Sassanid Arab client Kingdom
Satellite state
A satellite state is a political term that refers to a country that is formally independent, but under heavy political and economic influence or control by another country...

 of Al-Hirah
Al-Hirah
Al Hīra was an ancient city located south of al-Kufah in south-central Iraq.- Middle Ages:Al Hīra was a significant city in pre-Islamic Arab history. Originally a military encampment, in the 5th and 6th centuries CE it became the capital of the Lakhmids.The Arabs were migrating into the Near East...

, and defeated the Sassanid Persian forces
Sassanid army
The birth of the Sassanid army dates back to the rise of Ardashir I , the founder of the Sassanid dynasty, to the throne. Ardashir aimed at the revival of the Persian Empire, and to further this aim, he reformed the military by forming a standing army which was under his personal command and whose...

 during his conquest of Iraq (Mesopotamia). He was later transferred to the western front to capture Roman Syria and the Byzantine Arab client state of the Ghassanids
Ghassanids
The Ghassanids were a group of South Arabian Christian tribes that emigrated in the early 3rd century from Yemen to Syria, Jordan, Lebanon and the Holy Land....

. Even though Umar later relieved him of high command, he nevertheless remained the effective leader of the forces arrayed against the Byzantines during the early stages of the Byzantine–Arab Wars. Under his command, Damascus
Damascus
Damascus , commonly known in Syria as Al Sham , and as the City of Jasmine , is the capital and the second largest city of Syria after Aleppo, both are part of the country's 14 governorates. In addition to being one of the oldest continuously inhabited cities in the world, Damascus is a major...

 was captured in 634 and the key Arab victory against the Byzantine
Byzantine army
The Byzantine army was the primary military body of the Byzantine armed forces, serving alongside the Byzantine navy. A direct descendant of the Roman army, the Byzantine army maintained a similar level of discipline, strategic prowess and organization...

 forces was achieved at the Battle of Yarmouk (636), which led to the conquest of the Bilad al-Sham
Greater Syria
Greater Syria , also known simply as Syria, is a term that denotes a region in the Near East bordering the Eastern Mediterranean Sea or the Levant....

 (Levant
Levant
The Levant or ) is the geographic region and culture zone of the "eastern Mediterranean littoral between Anatolia and Egypt" . The Levant includes most of modern Lebanon, Syria, Jordan, Israel, the Palestinian territories, and sometimes parts of Turkey and Iraq, and corresponds roughly to the...

).
In 638, at the zenith of his career, he was dismissed from military services.

Early life

Khalid was born around c. 592 in Mecca to Walid ibn al-Mughira
Walid ibn al-Mughira
Walid ibn Mughira was the chief of the Banu Makhzum clan of the Quraish Tribe. His clan was responsible for warfare, and he was wealthy. These two factors combined to make him proficient in warfare.-Family:...

, the chief of the Banu Makhzum
Banu Makhzum
Banū Makhzūm was one of the wealthy clans of Quraysh, the Arab tribe of the Islamic prophet Muhammad.Famous individuals of the Banū Makhzūm include*Amr ibn Hishām better known as Abu Al-Hakam or Abu Jahl*Walid ibn al-Mughira...

, a clan of the Arab tribe of Quraysh. His father was known in Mecca by the title of Al-Waheed- the Unique. The three leading clans of Quraysh at that time were, Banu Hashim
Banu Hashim
Banū Hāshim was a clan in the Quraysh tribe. Muhammad, was a member of this clan; his great-grandfather was Hashim, for whom the clan is named. Members of this clan are referred to by the Anglicised version of their name as Hashemites, or Huseini or Hasani...

, Banu Abd-al-dar
Banu Abd-al-dar
-History:Their progenitor is Abd-al-Dar ibn Qusai ibn Kilab. Historically, this tribe carried the banner in war, and Muhammad continued that tradition. In battles between the Makkans and the Muslims, the banner was frequently carried on both sides by a member of this tribe....

, and Banu Makhzum. The Banu Makhzum was responsible for the matters of war. Soon after his birth, and in accordance with the traditions of the Quraysh, Khalid was sent to a Bedouin
Bedouin
The Bedouin are a part of a predominantly desert-dwelling Arab ethnic group traditionally divided into tribes or clans, known in Arabic as ..-Etymology:...

 tribe in the desert, where a foster mother would nurse him and bring him up in the clear, dry and unpolluted air of the desert. At the age of five or six, he returned to his parents in Mecca. Khalid during his childhood also had a mild attack of smallpox which he survived, but it left some pockmark
Acne vulgaris
Acne vulgaris is a common human skin disease, characterized by areas of skin with seborrhea , comedones , papules , pustules , Nodules and possibly scarring...

s on his left cheek.

Khalid and Umar the second Caliph, were cousins and had very close facial resemblance. Khalid and Umar were both very tall, Khalid had a well-built body with broad shoulders. He had a beard which appeared full and thick on his face. He was also one of the champion wrestlers of his time.
As a member of the tribe of Makhzum, who had specialized in warfare, and were amongst the best horsemen in Arabia
Arabian Peninsula
The Arabian Peninsula is a land mass situated north-east of Africa. Also known as Arabia or the Arabian subcontinent, it is the world's largest peninsula and covers 3,237,500 km2...

, Khalid, as a child, learned to ride and use weapons like the spear
Spear
A spear is a pole weapon consisting of a shaft, usually of wood, with a pointed head.The head may be simply the sharpened end of the shaft itself, as is the case with bamboo spears, or it may be made of a more durable material fastened to the shaft, such as flint, obsidian, iron, steel or...

, the lance
Lance
A Lance is a pole weapon or spear designed to be used by a mounted warrior. The lance is longer, stout and heavier than an infantry spear, and unsuited for throwing, or for rapid thrusting. Lances did not have tips designed to intentionally break off or bend, unlike many throwing weapons of the...

, the bow
Bow (weapon)
The bow and arrow is a projectile weapon system that predates recorded history and is common to most cultures.-Description:A bow is a flexible arc that shoots aerodynamic projectiles by means of elastic energy. Essentially, the bow is a form of spring powered by a string or cord...

, and the sword
Sword
A sword is a bladed weapon used primarily for cutting or thrusting. The precise definition of the term varies with the historical epoch or the geographical region under consideration...

. Lance is said to be his favorite among the weapons. In youth he was admired as a renowned warrior and wrestler among the Quraysh.

Muhammad's era (610–632)

Not much is known about Khalid during the early days of the preaching of Muhammad. His father was known for his hostility against Muhammad.
Following the migration of Muhammad from Mecca to Medina
Hijra (Islam)
The Hijra is the migration or journey of the Islamic prophet Muhammad and his followers from Mecca to Medina in 622 CE. Alternate spellings of this Arabic word are Hijrah, Hijrat or Hegira, the latter following the spelling rules of Latin.- Hijra of Muhammad :In September 622, warned of a plot to...

, many battles were fought between the new Muslim
Muslim
A Muslim, also spelled Moslem, is an adherent of Islam, a monotheistic, Abrahamic religion based on the Quran, which Muslims consider the verbatim word of God as revealed to prophet Muhammad. "Muslim" is the Arabic term for "submitter" .Muslims believe that God is one and incomparable...

 community at Medina and the confederacy of the Quraysh. Khalid did not participate in the Battle of Badr
Battle of Badr
The Battle of Badr , fought Saturday, March 13, 624 AD in the Hejaz region of western Arabia , was a key battle in the early days of Islam and a turning point in Muhammad's struggle with his opponents among the Quraish in Mecca...

—the first battle fought between Muslims and Qurayshites—but his brother Walid ibn Walid was caught and made a prisoner. Khalid and his elder brother Hasham ibn Walid went to Medina to ransom Walid, but soon after he was ransomed, Walid, amidst the journey back to Mecca, escaped and went back to Muhammad and converted to Islam.
Khalid's leadership was instrumental in turning the tables and ensuring a Meccan victory during the Battle of Uhud
Battle of Uhud
The Battle of Uhud was fought on March 19, 625 at the valley located in front of Mount Uhud, in what is now northwestern Arabia. It occurred between a force from the Muslim community of Medina led by the Islamic prophet Muhammad, and a force led by Abu Sufyan ibn Harb from Mecca, the town from...

 (625). In 627 AD he was a part of Quraysh's campaign against the Muslims, resulting in the Battle of the Trench
Battle of the Trench
The Battle of the Trench also known as Battle of Ahzab, Battle of the Confederates and Siege of Medina , was a fortnight-long siege of Yathrib by Arab and Jewish tribes. The strength of the confederate armies is estimated around 10,000 men with six hundred horses and some camels, while the...

, Khalid's last battle against Muslims.

Conversion to Islam

A peace agreement of ten years was concluded between the Muslims and Quraysh of Mecca at the Treaty of Hudaybiyyah
Treaty of Hudaybiyyah
The Treaty of Hudaybiyyah is the treaty that took place between the state of Medina and the Quraishi tribe of Mecca in March 628CE .-Background:...

 in 628. It has been recorded that Muhammad told Khalid's brother, Walid bin Walid, that: "A man like Khalid, can't keep himself away from Islam for long". Walid wrote letters to Khalid persuading him to convert. Khalid, who was not unduly drawn towards the idols of the Kaaba
Kaaba
The Kaaba is a cuboid-shaped building in Mecca, Saudi Arabia, and is the most sacred site in Islam. The Qur'an states that the Kaaba was constructed by Abraham, or Ibraheem, in Arabic, and his son Ishmael, or Ismaeel, as said in Arabic, after he had settled in Arabia. The building has a mosque...

, decided to convert to Islam and is said to have shared this matter with his childhood friend Ikrimah ibn Abi-Jahl
Ikrimah ibn Abi-Jahl
Ikrimah ibn Abi Jahl was an important early Muslim leader and companion of Muhammad. As the son of Abu Jahl, Ikrimah was at first, one of the chief Mecca opponents to Muhammad....

 who opposed him. Khalid was threatened by Abu Sufyan ibn Harb
Abu Sufyan ibn Harb
Sakhr ibn Harb , more commonly known as Abu Sufyan was a leading man of the Quraish of Mecca. He was a staunch opponent of the Islamic prophet Muhammad before accepting Islam later in his life.-Opposition to Islam:...

 with dire consequences, but was restrained by Ikrimah who is reported to have said: "Steady, O Abu Sufyan! Your anger may well lead me also to join Muhammad. Khalid is free to follow whatever religion he chooses".
In May 629, Khalid set out for Medina. On the way he met 'Amr ibn al-'As
'Amr ibn al-'As
`Amr ibn al-`As was an Arab military commander who is most noted for leading the Muslim conquest of Egypt in 640. A contemporary of Muhammad, and one of the Sahaba , who rose quickly through the Muslim hierarchy following his conversion to Islam in the year 8 AH...

 and Uthman ibn Talha, who were also going to Medina to convert to Islam. They arrived at Medina on 31 May 629 and went to the house of Muhammad. Khalid was received by his elder brother Walid bin Walid and was first among the three men to enter Islam.
Battle of Mutah


Three months after Khalid's arrival at Medina, Muhammad sent an envoy to the Ghassanid ruler of Syria, a vassal of Byzantine empire
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

, with a letter inviting him to convert to Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

. While passing through Mu'tah, this envoy was intercepted and killed by a local Ghassanid chieftain by the name of Shurahbil ibn Amr
Shurahbil ibn Amr
Shurahbil ibn Amr was a Ghassanid king in Syria during the 7th century A.D....

. Traditionally, diplomatic envoys held immunity from attack, and the news of this act enraged Medina.

An expedition was immediately prepared to take punitive action against the Ghassanids. Muhammad appointed Zayd ibn Harithah
Zayd ibn Harithah
Zayd ibn Harithah or Zayd mawla Muhammad was a prominent figure in the early Islamic community and the only one of sahaba whose name is spelled directly in the Qur'an. As he was the adopted son of the Islamic prophet, Muhammad, before Islam abolished adoption in exchange of Kafala. He was an...

 as the commander of the force. In the event of Zayd's death, the command was to be taken over by Ja`far ibn Abī Tālib, and if Jafar were to be killed, the command would be in the hands of `Abd Allah ibn Rawahah
`Abd Allah ibn Rawahah
‘Abdullah ibn Rawahah ibn Tha‘labah was one of the companions of the Islamic prophet, Muhammad.-Biography:Ibn Rawahah was from the Arabian tribe, the Banu Khazraj...

. In the event that all three were killed, the men of the expedition were to select a commander from amongst themselves.

All three named commanders were slain during the battle, and Khalid was selected as the commander. He was able to maintain his heavily outnumbered army of 3,000 men against a massive army of 2,000,00 of the Byzantine Empire and Ghassanid Arabs in what would be known as the Battle of Mu'tah
Battle of Mu'tah
The Battle of Mu'tah was fought in 629 , near the village of Mu'tah, east of the Jordan River and Karak in Karak Governorate, between an army sent by the Islamic prophet, Muhammad, and an army of the Byzantine Empire- The Eastern Romans.In Muslim histories, the battle is usually described as the...

. Khalid assumed command of the Muslim army at the crucial moment, and turned what would have been a bloody slaughter into a strategic retreat and saved the Muslim army from total annihilation.

During nightfall, Khalid sent some columns behind the main army, and the next morning prior to the battle they were instructed to join the Muslim army in small bands, one after the other, giving an impression of a fresh reinforcement, thus lowering the opponent's morale. Khalid somehow stabilized the battle lines for that day, and during the night his men retreated back to Arabia. Believing a trap was waiting for them, the Byzantine troops did not pursue. Khalid is said to have fought valiantly at the Battle of Mu'tah and to have broken nine swords during the battle. After the Battle of Mu'tah, Khalid was given the title Sword of Allah for bringing back his army to fight another day.
Later military campaigns


A year later, in 630 AD, the Muslims advanced from Medina to conquer Mecca. In the Conquest of Mecca
Conquest of Mecca
Mecca was conquered by the Muslims in January 630 AD .-Background:In 628 the Meccan tribe of Quraysh and the Muslim community in Medina signed a 10 year truce called the Treaty of Hudaybiyyah....

 Khalid commanded one of the four Muslims armies that entered Mecca from four different routes, and routed the Qurayshi cavalry. Later that year, he participated in the Battle of Hunayn
Battle of Hunayn
The Battle of Hunain was fought between Muhammad and his followers against the Bedouin tribe of Hawazin and its subsection the Thaqif in 630 in a valley on one of the roads leading from Mecca to al-Ta'if. The battle ended in a decisive victory for the Muslims, who captured enormous spoils...

 and the Siege of Ta'if
Siege of Ta'if
The Siege of Taif took place in 630 CE, as the Muslims besieged the city of Taif after their victory in the Battle of Hunayn and Autas. However, the city did not succumb to the siege. One of their chieftains, Urwah ibn Mas'ud, was absent in Yemen during that siege...

.

He was part of the Tabuk campaign
Battle of Tabouk
The Battle of Tabouk was a military expedition, which, according to Muslim biographies, was initiated by the Prophet Muhammad in October, AD 630. Muhammad led a force of as many as 30,000 north to Tabouk in present-day northwestern Saudi Arabia, with the intention of engaging the Byzantine army...

 under the command of Muhammad, and from there he was sent to Daumat-ul-Jandal where he fought and captured the Arab Prince of Daumat-ul-Jandal
Battle of Daumat-ul-jandal
The Battle of Daumat-ul-jandal took place between Muslims and Rebel Arab tribes in August 633 AD. This was a part of the Riddah wars. Daumat ul jandal was given to Ayadh bin Ghanam to crush the rebels, but he failed in doing so, and send for help to Khalid ibn Walid who was in Iraq in those...

, forcing Daumat-ul-Jandal to submit.

In 631 A.D he participated in the farewell hajj
Hajj
The Hajj is the pilgrimage to Mecca, Saudi Arabia. It is one of the largest pilgrimages in the world, and is the fifth pillar of Islam, a religious duty that must be carried out at least once in their lifetime by every able-bodied Muslim who can afford to do so...

 of Muhammad. During which is said to have collected few hairs of Muhammad, as a holy relic, that would help him winning the battles.
Military campaigns as commander


On January 630 AD, 8AH, 9th month, of the Islamic Calendar. Khalid ibn al-Walid was sent to destroy the Idol Goddess al-Uzza, worshipped by polytheists, he did this successfully, and 1 woman was also killed, who Muhammad claimed was the real al-Uzza.

Khalid ibn al-Walid was also sent to invite the Banu Jadhimah tribe to Islam. They accepted the invitation, but Khalid took all of them prisoners and executed a portion of the tribe anyway (before he was stopped), due to past enmity.

Muhammad also sent Khalid on an expedition to Dumatul Jandal
Expedition of Khalid ibn al-Walid (Dumatul Jandal)
Expedition of Khalid ibn al-Walid, to Dumat Al-Jandal, to attack the Christian Prince of Duma, took place in March 631 AD, 9AH,11th month of the Islamic Calendar, or October 630AD according to William Montgomery Watt.-Attack on Duma Castle:...

, to attack the Christian Prince who lived in a castle there. This took place in March 631 AD, 9AH,11th month of the Islamic Calendar. In this campaign, Khaled took the Prince hostage and threatened to kill him until the door of the castle was opened. Muhammad then later ransomed him in exchange for 2000 camels, 800 sheep, 400 armours and 400 lances, as well as a requirement to pay Jizyah.

In April 631 AD, Muhammad again sent Khalid on an 2nd expedition to Dumatul Jandal
Expedition of Khalid ibn al-Walid (2nd Dumatul Jandal)
Expedition of Khalid ibn al-Walid to Dumatul Jandal, to demolish the pagan idol Wadd, took place in April 631 AD.This was the 2nd time Khalid was sent on a military campaign to Dumatul Jandal...

 to destroy the pagan Idol, Wadd
Wadd
Wadd "Love, Friendship", known variously as Ilumquh, ʻAmm and Sīn, was the Minaean moon god. Snakes were believed to be sacred to Wadd. He is mentioned in the Qur'ān as a deity of the time of the Prophet Noah....

. Khalid destroyed the statue as well as the shrine and killed those who resisted.

Conquest of Arabia

After the death of Muhammad, many powerful Arab tribes broke away in open revolt against the rule of Medina. Caliph Abu Bakr
Abu Bakr
Abu Bakr was a senior companion and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632-634 CE when he became the first Muslim Caliph following Muhammad's death...

 sent his armies to counter the rebels and apostate
Apostasy
Apostasy , 'a defection or revolt', from ἀπό, apo, 'away, apart', στάσις, stasis, 'stand, 'standing') is the formal disaffiliation from or abandonment or renunciation of a religion by a person. One who commits apostasy is known as an apostate. These terms have a pejorative implication in everyday...

s. Khalid was one of Abu Bakr’s main advisers and an architect of the strategic planning of the Riddah wars. He was given the command over the strongest Muslim army and was sent towards central Arabia, the most strategically sensitive area where the most powerful rebel tribes resided. The region was closest to the Muslim stronghold of Medina and was the greatest threat to the city. Khalid first set out for the rebel tribes of Tayy
Tayy
Tayy is a large and ancient Arabian tribe belonging to the southern or Qahtanite branch of Arab tribes. Their original homeland was the area of the two mountains Aja and Salma in north central Arabia , though, like all Qahtanite tribes, it is believed they originally moved there from Yemen...

 and Jalida
Jalida
A rebel tribe of Arabia which submitted to caliph Abu Bakr in 633 A.C due to arbitration of Addi bin hatim....

, where Adi ibn Hatim—a prominent companion of Muhammad
Sahaba
In Islam, the ' were the companions, disciples, scribes and family of the Islamic prophet...

, and a chieftain of the Tayy tribe—arbitrated, and the tribes submitted to the Caliphate.

In mid-September 632 AD, Khalid defeated Tulaiha
Battle of Buzakha
The Battle of Buzakha took place between Khalid ibn al-Walid and Tulieha, in September 632.- General Engagement :Khalid at the beginning of the battle challenged Tulieha for a duel. After a brief encounter with Khalid he ran for shelter towards his own army. The battle was a slogging contest in...

, a main rebel leader who claimed prophethood
Prophethood
Prophethood is the word used to reference the institution by which God sends emissaries, or prophets, to guide mankind. Use of the word is almost always theological.-Islam:...

 as a means to draw support for himself. Tulaiha's power was crushed after his remaining followers were defeated at the Battle of Ghamra
Battle of Ghamra
The Battle of Ghamra took place between Khalid ibn al-Walid and the remaining army of Buzakha, 20 miles from Buzakha.-On-line Resources:-References:...

. Khalid next marched to Naqra and defeated the rebel tribe of Banu Saleem at the Battle of Naqra
Battle of Naqra
The Battle of Naqra took place in October 633 between rebel armies and Khalid ibn al-Walid's army during the Ridda Wars.-On-line Resources:-References:...

. The region was secured after the Battle of Zafar
Battle of Zafar
The Battle of Zafar took place in 633 AD between Khalid ibn al-Walid and a tribal mistress called Salma. Khalid defeated her and she died on the battlefield. The battle was part of the Ridda Wars.This apostate leader was riding on a camel surrounded by her loyal guard. Khalid ibn al-Walid...

 in October 632 with the defeat of a tribal mistress, Salma.

Once the region around Medina, the Islamic capital, was recaptured, Khalid entered Nejd, a stronghold of the Banu Tamim
Banu Tamim
Banī Tamīm Tamim is one of the largest of all Arab tribes. Their history goes back to pre-Islamic times....

 tribes. Many of the clans hastened to visit Khalid and submit to the rule of the Caliphate
Caliphate
The term caliphate, "dominion of a caliph " , refers to the first system of government established in Islam and represented the political unity of the Muslim Ummah...

. But the Banu Yarbu' tribe, under Sheikh Malik ibn Nuwayrah
Malik ibn Nuwayrah
Malik ibn Nuwaira , also spelled as Malik ibn Nuwera, was a chief of the Bani Yarbu', a large section of the powerful tribe of Bani Tamim which inhabited the north-eastern region of Arabia, above Bahrain. Being close to Persia, some elements of the Bani Tamim had embraced Zoroastrianism, but by and...

, hung back. Malik avoided direct contact with Khalid's army and ordered his followers to scatter, and he and his family apparently moved away across the desert. He also collected taxes and sent his men to Medina to deliver them. Nevertheless, Malik was accused of rebelling against the state of Medina and charged for entering into an anti-Caliphate alliance with Sajjah, a self-proclaimed prophetess. Malik was arrested along with his clansmen, and asked by Khalid about his crimes. Upon hearing Malik's response: "your master said this, your master said that" referring to Abu Bakr
Abu Bakr
Abu Bakr was a senior companion and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632-634 CE when he became the first Muslim Caliph following Muhammad's death...

, Khalid declared Malik a rebel apostate and ordered his execution. After Malik's execution, Khalid took Malik's wife, Layla bint al-Minhal
Layla bint al-Minhal
Layla bint al-Minhal was a sahaba of Muhammad and the wife of Malik ibn Nuwayra.Layla was the daughter of Al Minhal and was later also known as Umm Tamim. She was acclaimed as one of the most beautiful girls in Arabia, for her gorgeous eyes. When she came of age, she was pursued by many men, but...

, and according to Rizvi & Rizvi, was liable for rape. According to some Sunnis, Khalid married Malik's wife on the same night of his murder. However, the Shiites argue that Islamically, Khalid would have had to wait for her to complete the waiting period iddah (which can last from 4 months to 1 year) before Khalid would have been able to marry her.

Abu Qatada Ansari, a companion of Muhammad, who accompanied Khalid from Medina was so shocked at Malik's murder by Khalid that he immediately returned to Medina, and told Abu Bakr that he refused to serve under a commander who had killed a Muslim. The death of Malik and Khalid's taking of his wife Layla created controversy. Some officers of his army—including Abu Qatadah—believed that Khalid killed Malik to take his wife. After the pressure exerted by Umar—Khalid's cousin and one of Caliph Abu Bakr's main advisors—Abu Bakr called Khalid back to Medina to explain himself. Although Khalid had declared Malik an apostate, in Medina, ‘Umar told Khalid: “You enemy of Allâh! You killed a Muslim man and thereafter took his wife. By Allâh, I will stone you".

After the incident of Malik, Abu Bakr sent Khalid to crush the most powerful threat to the nascent Islamic state of Medina: Musaylimah
Musaylimah
Musaylimah or Maslamah bin Ḥabīb was one of a series of men who claimed to be a prophet around the same time as Muhammad. He is viewed as a false prophet by traditional accounts, and frequently referred to by the epithet "the Liar" .-Biography:...

, a claimant to prophethood, who had already defeated two Muslim armies. In the third week of December 632, Khalid won a decisive victory against Musaylimah at the Battle of Yamama
Battle of Yamama
The Battle of Yamama was fought in December AD 632 as part as the Ridda or apostate wars on the plain of Aqraba in the region of Yamama between the forces of Muslim Caliph Abu Bakr and Musaylimah, an apostate.-Background:...

. Musaylimah died in the battle, and nearly all resistance from rebelling tribes collapsed.

Invasion of Persian Empire


With the collapse of the rebellion, and Arabia united under the central authority of the caliph at Medina, Abu Bakr decided to expand his empire. It is unclear what his intentions were, whether it was a full scale expansion plan or pre-emptive attacks to secure more territory to create a buffer zone between Islamic state and powerful Sassanid and Byzantine empires. Khalid was sent to the Persian Empire with an army consisting of 18,000 volunteers to conquer the richest province of the Persian empire, Euphrates
Euphrates
The Euphrates is the longest and one of the most historically important rivers of Western Asia. Together with the Tigris, it is one of the two defining rivers of Mesopotamia...

 region of lower Mesopotamia, (present day Iraq
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

). Khalid entered lower Mesopotamia with this force.

He won quick victories in four consecutive battles: the Battle of Chains
Battle of Chains
The Battle of Sallasil or the Battle of Chains was the first battle fought between the Rashidun Caliphate and the Sassanid Persian Empire. The battle was fought soon after the Ridda Wars were over and Arabia was united under the authority of Caliph Abu Bakr...

, fought in April 633; the Battle of River
Battle of River
According to Arab and Muslim sources, the Battle of River took place in Mesopotamia between the forces of the Rashidun Caliphate and the Persian Empire. Muslims, under Khalid ibn al-Walid's command, defeated the numerically superior Persian army....

, fought in the third week of April 633; the Battle of Walaja
Battle of Walaja
The Battle of Walaja was a battle fought in Mesopotamia in May 633 between the Rashidun Caliphate army under Khalid ibn al-Walid and al muthanna ibn haarithah against the Persian Empire and its Arab allies...

, fought in May 633 (where he successfully used a double envelopment manoeuvre
Pincer movement
The pincer movement or double envelopment is a military maneuver. The flanks of the opponent are attacked simultaneously in a pinching motion after the opponent has advanced towards the center of an army which is responding by moving its outside forces to the enemy's flanks, in order to surround it...

), and Battle of Ullais
Battle of Ullais
The Battle of Ullais was fought between the forces of the Rashidun Caliphate and the Sassanid Persian Empire in the middle of May 633 A.D in Iraq, and is sometimes referred to as the Battle of Blood River since, as a result of the battle, there were enormous amounts of Sassanian and Arab Christian...

, fought in the mid-May 633. In the last week of May 633, al-Hira, the regional capital city of lower Mesopotamia, fell to Khalid
Battle of Hira
Al-Hirah city, widely known for its size and wealth, was a Sassanian dukedom as it was the capital of the Persian province of Iraq. Many of its Lakhmid Christian Arab inhabitants patrolled the desert on behalf of the Sassanians...

. The inhabitants were given peace on the terms of annual payment of jizya
Jizya
Under Islamic law, jizya or jizyah is a per capita tax levied on a section of an Islamic state's non-Muslim citizens, who meet certain criteria...

(tribute) and agreed to provide intelligence for Muslims. After resting his armies, in June 633, Khalid laid siege to Anbar which despite fierce resistance fell in July 633 as a result of the siege imposed on the town
Battle of Al-Anbar
the Muslim Arab army was under the command of Khalid ibn al-Walid and the battle took place at Anbar which is located approximately 80 miles from the ancient city of Babylon. Khalid besieged the Sassanian Persians in the city fortress, which had strong walls. Scores of Muslim archers were used in...

. Khalid then moved towards the south, and captured Ein ul Tamr
Battle of ein-ul-tamr
When the Muslim army conquered the town of Ayn al-Tamr they found a number of Arab Christian priests in a monastery. One of them was called Nusair another called Serine. They both embraced Islam. Nusair is the father of Mosa Ben Nusair, the supreme commander of the forces which later conquered...

 in the last week of July, 633.

By then, nearly all of lower Mesopotamia, (the northern Euphrates
Euphrates
The Euphrates is the longest and one of the most historically important rivers of Western Asia. Together with the Tigris, it is one of the two defining rivers of Mesopotamia...

 region), was under Khalid's control. Meanwhile, Khalid received a call for relief from northern Arabia at Daumat-ul-Jandal, where another Muslim Arab general, Ayaz bin Ghanam, was being surrounded by rebel tribes. August 633, Khalid went to Daumat-ul-jandal and defeated the rebels in the Battle of Daumat-ul-jandal
Battle of Daumat-ul-jandal
The Battle of Daumat-ul-jandal took place between Muslims and Rebel Arab tribes in August 633 AD. This was a part of the Riddah wars. Daumat ul jandal was given to Ayadh bin Ghanam to crush the rebels, but he failed in doing so, and send for help to Khalid ibn Walid who was in Iraq in those...

, capturing the city fortress. On his journey back to Mesopotamia, Khalid is said to have made a secret trip to Mecca
Mecca
Mecca is a city in the Hijaz and the capital of Makkah province in Saudi Arabia. The city is located inland from Jeddah in a narrow valley at a height of above sea level...

 to participate in Hajj
Hajj
The Hajj is the pilgrimage to Mecca, Saudi Arabia. It is one of the largest pilgrimages in the world, and is the fifth pillar of Islam, a religious duty that must be carried out at least once in their lifetime by every able-bodied Muslim who can afford to do so...

.

On his return from Arabia, Khalid received intelligence entailing a concentration of a large Persian army and Christian Arab
Arab Christians
Arab Christians are ethnic Arabs of Christian faith, sometimes also including those, who are identified with Arab panethnicity. They are the remnants of ancient Arab Christian clans or Arabized Christians. Many of the modern Arab Christians are descendants of pre-Islamic Christian Arabian tribes,...

 auxiliaries. These forces were based in four different camps in the Euphrates region at Hanafiz, Zumail, Saniyy and the largest being at Muzayyah. Khalid avoided a pitch battle with a large united Persian force and decided to attack and destroy each of the camps in a separate night attacks from three sides. He divided his army in three units, and attacked the Persian forces in coordinated assaults from three different directions during the night, starting from the Battle of Muzayyah
Battle of Muzayyah
When Khalid ibn Walid left from Ain-ul-Tamr to Daumat ul jandal for the help of Ayadh, the Persian court believed that Khalid had returned to Arabia with a large part of his army. The Persians decided to throw the Muslims back into the desert and regain the territories and the prestige which the...

, then the Battle of Saniyy
Battle of Saniyy
When Khalid ibn Walid gone from Ain-ul-Tamr to Daumat ul jandal for the help of Ayadh. The Persian court believed that Khalid had returned to Arabia with a large part of his army, Persians decided to throw the Muslims back into the desert and regain the territories and the prestige which the...

, and finally the Battle of Zumail
Battle of Zumail
The battle of Zumail was fought in 633 CE in what is now Iraq. It was a major Muslim victory in their conquest of that area. Under cover of night the Muslims attacked the Christian-Arab forces from three different sides...

 in November 633 AD.

This string of Muslim victories curtailed Persian efforts to recapture lower Mesopotamia and left the Persian capital Ctesiphon
Ctesiphon
Ctesiphon, the imperial capital of the Parthian Arsacids and of the Persian Sassanids, was one of the great cities of ancient Mesopotamia.The ruins of the city are located on the east bank of the Tigris, across the river from the Hellenistic city of Seleucia...

 unguarded and vulnerable to Muslim attack. Before assaulting the Persian capital, Khalid decided to eliminate all Persian forces from the south and west, and thus marched against the border city of Firaz, where he defeated a combined force of Sassanid Persians, Byzantine Romans and Christian Arabs and captured the city's fortress during the Battle of Firaz
Battle of Firaz
The Battle of Firaz was the last battle of the Muslim Arab commander Khalid ibn al-Walid in Mesopotamia against the combined forces of the Byzantine Roman Empire, Sassanid Persian Empire, and Christian Arabs...

 in December 633. This was the last battle in his conquest of lower Mesopotamia. While Khalid was on his way to attack Qadissiyah, a key fort on the way to Ctesiphon, he received a letter from Abu Bakr and was sent to the Byzantine front in Syria
Syria
Syria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....

 to assume the command of Muslim armies with the intent of conquering Roman Syria.
During his stay in Iraq, Khalid was also installed as military governor of the conquered territory.

Invasion of Eastern Roman Empire

After the successful invasion of the Sassanid Persian province of Iraq, Caliph Abu Bakr’s sent an expedition to invade the Levant
Levant
The Levant or ) is the geographic region and culture zone of the "eastern Mediterranean littoral between Anatolia and Egypt" . The Levant includes most of modern Lebanon, Syria, Jordan, Israel, the Palestinian territories, and sometimes parts of Turkey and Iraq, and corresponds roughly to the...

 (Roman Syria). The invasion was to be carried out by four corps, each with its own assigned targets. The Byzantines responded to this threat by concentrating their units at Ajnadyn (a place in Palestine, probably al-Lajjun) from different garrisons. This move tied down the Muslim troops at border regions, as with this large force at their rear, Muslim armies were no longer free to march to central or northern Syria.
Muslim forces apparently were too small in numbers to counter the Byzantine threat, and Abu Ubaidah ibn al-Jarrah
Abu Ubaidah ibn al-Jarrah
Amir ibn `Abdullah ibn al-Jarrah , more commonly known as Abu 'Ubaydah ibn al-Jarrah, was one of the ten companions of the Islamic prophet Muhammad who were promised Paradise as mentioned in early Islamic historical accounts and records...

, the chief Muslim commander of the Syrian front, requested reinforcements from Abu Bakr. The latter responded by sending reinforcements led by Khalid.

There were two routes towards Syria from Iraq, one was via Daumat-ul-Jandal (Now known as Skaka) and the other was through Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

 passing though Ar-Raqqah. Since the Muslim forces in Syria were in need of urgent reinforcement, Khalid avoided the conventional route to Syria via Daumat-ul-Jandal because it was a long and would take weeks to reach Syria. He also avoided the Mesopotamian route because of the presence of Roman garrisons in northern Syria and Mesopotamia. Engaging them at the time when Muslim armies were being outflanked in Syria, was also ruled out since it would mean fighting on two fronts. Khalid selected a rather shorter route to Syria which unconventionally passed though the Syrian Desert
Syrian Desert
The Syrian Desert , also known as the Syro-Arabian desert is a combination of steppe and true desert that is located in the northern Arabian Peninsula covering 200,000 square miles . also the desert is very rocky and flat...

. He marched his army though the desert, where traditions tells that his soldiers marched for two days without a single drop of water, before reaching a pre-decided water source at an oasis
Oasis
In geography, an oasis or cienega is an isolated area of vegetation in a desert, typically surrounding a spring or similar water source...

. Khalid is said to have solved the water shortage issue using a Bedouin
Bedouin
The Bedouin are a part of a predominantly desert-dwelling Arab ethnic group traditionally divided into tribes or clans, known in Arabic as ..-Etymology:...

 method. Camel
Camel
A camel is an even-toed ungulate within the genus Camelus, bearing distinctive fatty deposits known as humps on its back. There are two species of camels: the dromedary or Arabian camel has a single hump, and the bactrian has two humps. Dromedaries are native to the dry desert areas of West Asia,...

s were made to drink water after intentionally denying them water for a lengthy time period, encouraging the camels to drink a lot of water at one time. Camels have the ability to store water in their stomach which in turn could be obtained by slaughtering them when necessary. Muslim troops rode entirely on camels and this method became an effective one for the Muslim army.

Khalid entered Syria in June 634 and quickly captured the border forts of Sawa, Arak, Palmyra
Palmyra
Palmyra was an ancient city in Syria. In the age of antiquity, it was an important city of central Syria, located in an oasis 215 km northeast of Damascus and 180 km southwest of the Euphrates at Deir ez-Zor. It had long been a vital caravan city for travellers crossing the Syrian desert...

, al-Sukhnah
Al-Sukhnah
Al-Sukhnah is a town in eastern Syria under the administration of the Homs Governorate, located between Palmyra and ar-Raqqah. Together with its satellite villages of al-Kawm and Tayyibah, al-Sukhnah had a population of 15,000 in 1989...

 (Qaryatayn and Hawarin were captured after the Battle of Qarteen
Battle of Qarteen
Battle of Qarteen was a minor battle between the Ghassanid Arab allies of the Byzantine empire, and the Rashidun Caliphate army. It was fought after Khalid ibn Walid had conquered Tadmur in Syria. His army marched to Qaryatain, the inhabitants of which resisted the Muslims. They were fought,...

 and the Battle of Hawarin). After subduing these cities, Khalid moved towards Bosra
Bosra
Bosra , also known as Bostra, Busrana, Bozrah, Bozra, Busra Eski Şam, Busra ash-Sham, and Nova Trajana Bostra, is an ancient city administratively belonging to the Daraa Governorate in southern Syria...

, a town near Syria-Arabian border and the capital of the Ghassanid Arab kingdom, a vassal of the eastern Roman Empire. He bypassed Damascus
Damascus
Damascus , commonly known in Syria as Al Sham , and as the City of Jasmine , is the capital and the second largest city of Syria after Aleppo, both are part of the country's 14 governorates. In addition to being one of the oldest continuously inhabited cities in the world, Damascus is a major...

 while passing though a mountain pass which is now known as "Sanita-al-Uqab" ("the Uqab pass") after the name of Khalid's army standard. On his way at Maraj-al-Rahat, Khalid routed a Ghassanid army of Christian Arabs in the brief Battle of Marj-al-Rahit
Battle of Marj-al-Rahit
The Battle of Mari-al-Rahit was a minor conflict fought between the Ghassanid Arab allies of Byzantine Empire and Rashidun army under the command of Khalid bin Walid...

.

With the news of Khalid's arrival, Abu Ubaidah ordered Shurhabil ibn Hasana, one of the four corps commanders, to attack the city of Bosra. The latter laid siege to Bosra with his army of 4,000 men. The Byzantine and Christian Arab garrison which outnumbered the Shurhabil's force, made a sally and were likely to annihilate them when Khalid's cavalry arrived from the desert and attacked the rear of the Byzantine forces, relieving Shurhabil. The garrison retreated to the city's fortress. Abu Ubaidah joined Khalid at Bosra and Khalid, as per the caliph's instructions, took over the supreme command. The fortress of Bosra surrendered in mid-July 634, effectively ending the Ghassanid dynasty.
After capturing Bosra, Khalid instructed all the corps to join him at Ajnadayn where they fought a decisive battle against the Byzantines on 30 July 634. Modern historians consider this battle to have been the key in breaking Byzantine power in Syria.

Defeat at the Battle of Ajnadayn
Battle of Ajnadayn
The Battle of Ajnadayn, fought on July 30, 634, south of Beit Shemesh in present day Israel, was the first major pitched battle between the Eastern Roman Empire and the army of the Arabic Rashidun Caliphate. The result of the battle was a decisive Muslim victory...

, left Syria vulnerable to the Muslim army. Khalid decided to capture Damascus, the Byzantine stronghold. At Damascus, Thomas, son-in-law of Byzantine Emperor Heraclius
Heraclius
Heraclius was Byzantine Emperor from 610 to 641.He was responsible for introducing Greek as the empire's official language. His rise to power began in 608, when he and his father, Heraclius the Elder, the exarch of Africa, successfully led a revolt against the unpopular usurper Phocas.Heraclius'...

, was in charge of the city's defense. Receiving intelligence of Khalid’s march towards Damascus he prepared the city's defences. He wrote to Emperor Heraclius, who was at Emesa
Homs
Homs , previously known as Emesa , is a city in western Syria and the capital of the Homs Governorate. It is above sea level and is located north of Damascus...

 that time, for reinforcement. Moreover, Thomas, in order to delay or halt Khalid's advance and to attain time to prepare for a siege, sent his armies to move forward. Two of his armies were routed first at Yaqusa in mid-August and the other at Maraj as-Saffer on 19 August. Meanwhile, Heraclius' reinforcements reached Damascus before the other column of Heraclius reached the city which Khalid laid siege to on 20 August. To isolate Damascus from the rest of the region, Khalid placed the detachments south on the road to Palestine and in north at the Damascus-Emesa route, and several other smaller detachments on routes towards Damascus. Heraclius' reinforcements were intercepted and routed by Khalid at the Battle of Sanita-al-Uqab 30 km from Damascus.

Khalid led an assault and conquered Damascus
Conquest of Damascus
The Siege of Damascus lasted from 21 August to 19 September 634 AD before the city fell to the Rashidun Caliphate. Damascus was the first major city of the Byzantine empire to fall in the Muslim conquest of Syria....

 on 18 September 634 after a 30-day siege. According to some sources, the siege is purported to have lasted some four or six months. Emperor Heraclius having received the news of the fall of Damascus, left for Antioch
Antioch
Antioch on the Orontes was an ancient city on the eastern side of the Orontes River. It is near the modern city of Antakya, Turkey.Founded near the end of the 4th century BC by Seleucus I Nicator, one of Alexander the Great's generals, Antioch eventually rivaled Alexandria as the chief city of the...

 from Emesa. Muslim cavalry under Khalid attacked the Byzantine garrison of Damascus which was also heading towards Antioch, catching up to them using an unknown shortcut, at the Battle of Maraj-al-Debaj
Battle of Maraj-al-Debaj
Battle of Marj-ud-Deebaj was fought between the Byzantine army, survivors from the conquest of Damascus, and the Rashidun Caliphate army in September 634...

, 150 km north of Damascus. Abu Bakr died during the siege of Damascus and Umar became the new Caliph. He dismissed his cousin Khalid from his command and appointed Abu Ubaidah ibn al-Jarrah the new commander in chief of Islamic forces in Syria. Abu Ubaidah got the letter of his appointment and Khalid's dismissal during the siege, but he delayed the announcement until the city was conquered.

Dismissal of Khalid from command

On 22 August 634, Abu Bakr died, having made Umar
Umar
`Umar ibn al-Khattāb c. 2 November , was a leading companion and adviser to the Islamic prophet Muhammad who later became the second Muslim Caliph after Muhammad's death....

, Khalid's cousin, his successor. Umar's first move was to relieve Khalid from supreme command of Muslim Forces and appoint Abu Ubaidah as the new commander in chief of the Islamic army
Rashidun army
The Rashidun Caliphate Army or Rashidun army was the primary military body of the Rashidun Caliphate's armed forces during the Muslim conquests of the 7th century, serving alongside the Rashidun Navy...

. The relationship between Khalid and Umar had been tense since the incident of Malik ibn Nuwayrah. Khalid had become a trial of disbelief (because of his undefeated wars) for the Muslims as they had attributed the wins of battles to the personality and figure of Khalid; Umar was reported as saying:"I did not fire Khalid ibn al Waleed because I am angry with him or because of betrayal of trust or responsibility but the reason was just that I wanted people to know that it is Allah who gives victory". This resulted in the dismissal of Khalid from supreme command and later in 638, from military services. Khalid, gave a pledge of loyalty to the new caliph and continued service as an ordinary commander under Abu Ubaidah. He is reported to have said:
"If Abu Bakr is dead and Umar is Caliph, then we hear and obey".
There was inevitably a slowdown in the pace of military operations, as Abu Ubaidah would move slowly and steadily and was a more cautious commander. The conquest of Syria continued under his Generalship and, Abu Ubaidah being an admirer of Khalid, gave him command of the cavalry and used him as a military advisor.

Conquest of Central Levant

Soon after the appointment of Abu-Ubaidah as commander in chief, he sent a small detachment to the annual fair held at Abu-al-Quds, modern day Abla, near Zahlé
Zahlé
Zahlé is the capital and largest city of Beqaa Governorate, Lebanon. With around 50,000 inhabitants, it is the fourth largest city in Lebanon, after Beirut, Tripoli and Jounieh...

 50 km east of Beirut
Beirut
Beirut is the capital and largest city of Lebanon, with a population ranging from 1 million to more than 2 million . Located on a peninsula at the midpoint of Lebanon's Mediterranean coastline, it serves as the country's largest and main seaport, and also forms the Beirut Metropolitan...

. There was a Byzantine and Christian Arab garrison guarding that fair, however the size of the garrison was miscalculated by the Muslim informants. The garrison quickly encircled the small Muslim force. Before it would have been completely destroyed, Abu Ubaidah, having received new intelligence, sent Khalid to rescue the Muslim army. Khalid engaged and defeated them in the Battle of Abu-al-Quds on 15 October 634 and returned with tons of looted booty from the fair and hundreds of Roman prisoners.

With Central Syria captured, the Muslims had dealt a decisive blow to the Byzantines. The communication between Northern Syria and Palestine was now cut off. Abu Ubaidah decided to march to Fahl (Pella
Pella, Jordan
Pella is a village and the site of ancient ruins in northwestern Jordan. It is half an hour by car from Irbid, in the north of the country....

), which is about 500 ft (152.4 m) below sea level
Sea level
Mean sea level is a measure of the average height of the ocean's surface ; used as a standard in reckoning land elevation...

, and where a strong Byzantine garrison and survivors of Battle of Ajnadayn were present. The region was crucial because from here the Byzantine army could strike eastwards and cut the supply lines and communications to Arabia. Moreover with this large garrison at the rear, Palestine could not be invaded. The Muslim army moved to Fahl with Khalid leading the advance guard, only to find the plain being flooded by Byzantines engineers blocking the Jordan River. The Byzantine army was eventually defeated at the Battle of Fahl
Battle of Fahl
The Battle of Fahl or Battle of Pella was a Byzantine-Arab battle fought between the Rashidun army under Khalid ibn al-Walid Saifullah and the Roman Empire under Theodore the Sacellarius , in Fahl in January 635 AD...

 on the night 23 January 635.

Battle for Emesa and 2nd Battle of Damascus

With the victory at Fahl, the Muslim army split, Amr ibn al-Aas and Shurhabil ibn Hasana moved south to capture Palestine
Palestine
Palestine is a conventional name, among others, used to describe the geographic region between the Mediterranean Sea and the Jordan River, and various adjoining lands....

, while Abu Ubaidah and Khalid moved north to capture Northern Syria.
While the Muslims were occupied at Fahl, Heraclius, sensing the opportunity, quickly sent an army under General Theodras to recapture Damascus. Shortly after Heraclius dispatched this new army, the Muslims having finished the business at Fahl, were on their way to Emesa. The Byzantine army met the Muslims half way to Emesa, at Maraj-al-Rome. During the night Theodras sent half of his army towards Damascus to launch a surprise attack on the Muslim garrison.
Khalid's spy informed him about the move, Khalid having received permission from Abu Ubaidah, quickly moved towards Damascus with his mobile guard
Mobile guard
The Mobile Guard was an elite light cavalry regiment of Rashidun army during the Muslim conquest of Syria, under the command of Khalid ibn Walid...

. While Abu Ubaidah fought and defeated the Roman army in the Battle of Maraj-al-Rome, Khalid moved to Damascus with his Mobile guard
Mobile guard
The Mobile Guard was an elite light cavalry regiment of Rashidun army during the Muslim conquest of Syria, under the command of Khalid ibn Walid...

 attacking and routing General Theodras in the 2nd battle of Damascus.
A week later, Abu Ubaida capture Baalbek
Baalbek
Baalbek is a town in the Beqaa Valley of Lebanon, altitude , situated east of the Litani River. It is famous for its exquisitely detailed yet monumentally scaled temple ruins of the Roman period, when Baalbek, then known as Heliopolis, was one of the largest sanctuaries in the Empire...

 (Heliopolis), where the great Temple of Jupiter
Jupiter (mythology)
In ancient Roman religion and myth, Jupiter or Jove is the king of the gods, and the god of the sky and thunder. He is the equivalent of Zeus in the Greek pantheon....

 stood, and sent Khalid straight towards Emesa.

Emesa and Chalcis
Chalcis, Syria
Chalcis was an ancient city in Syria. Syrian Chalcis was the birthplace of 3rd century Neoplatonist philosopher Iamblichus.It is thought to be the site of the modern town of Qinnasrin, though Anjar in Lebanon has also been suggested as the site of ancient Chalcis....

 asked for peace for a year. Abu Ubaidah, accepted the offer and rather than invading the districts of Emesa and Chalcis, he consolidated his rule in conquered land and captured Hama
Hama
Hama is a city on the banks of the Orontes River in west-central Syria north of Damascus. It is the provincial capital of the Hama Governorate. Hama is the fourth-largest city in Syria—behind Aleppo, Damascus, and Homs—with a population of 696,863...

, Ma’arrat an Nu’man. However, the peace treaties were on Heraclius' instructions to lull the Muslims and to secure time for preparation of defenses of Northern Syria. Having mustered sizable armies at Antioch, Heraclius sent them to reinforce strategically important areas of Northern Syria, most importantly the strong fortress of Chalcis
Chalcis, Syria
Chalcis was an ancient city in Syria. Syrian Chalcis was the birthplace of 3rd century Neoplatonist philosopher Iamblichus.It is thought to be the site of the modern town of Qinnasrin, though Anjar in Lebanon has also been suggested as the site of ancient Chalcis....

. With the arrival of Byzantine army in the city, the peace treaty was violated. Abu Ubadiah and Khalid then marched to Emesa, and a Byzantine army that halted Khalid’s advance guard was routed and the Muslims besieged Emesa
Siege of Emesa
The Siege of Emesa was laid by the forces of Rashidun Caliphate from December 635 up until March 636. This led to the Islamic conquest of Emesa, which was a major trading city of the Byzantine Empire in the Levant.-Background:...

 which was finally completed in March 636 after two months of siege.

Battle of Yarmouk

After capturing Emesa, the Muslims moved north to capture the whole of the Northern Syria.
Meanwhile Heraclius had concentrated a large army at Antioch
Antioch
Antioch on the Orontes was an ancient city on the eastern side of the Orontes River. It is near the modern city of Antakya, Turkey.Founded near the end of the 4th century BC by Seleucus I Nicator, one of Alexander the Great's generals, Antioch eventually rivaled Alexandria as the chief city of the...

 to roll back Syria. Khalid got the news from Roman prisoners in Northern Syria. After his past experiences Heraclius had been avoiding pitch battles with the Muslims. He planned to isolate the Muslim corps from each other, and separately encircle and destroy the Muslim armies. Five massive armies were launched in Syria from different routes in June 636 to recapture it.
Khalid, sensing Heraclius' plan, feared that the Muslim armies would indeed be isolated and destroyed. In a council of war
Council of war
A council of war is a term in military science that describes a meeting held to decide on a course of action, usually in the midst of a battle. Under normal circumstances, decisions are made by a commanding officer, optionally communicated and coordinated by staff officers, and then implemented by...

 he suggested that Abu Ubaidah draw all the Muslim armies to one place so as to fight a decisive battle with the Byzantines.
As per Khalid's suggestion, Abu Ubaidah ordered all the Muslim armies in Syria to evacuate the conquered land and concentrate at Jabiya. This maneuver gave a decisive blow to Heraclius' plan, as he did not wish to engage his troops in an open battle with the Muslims, where the Muslim light cavalry could be effectively used against Heavy and less mobile Byzantine cavalry.
From Jabiya, on Khalid’s suggestion, Abu Ubaidah ordered the Muslim army to withdraw to the plain of the Yarmouk River
Yarmouk River
The Yarmouk River is the largest tributary of the Jordan River. It drains much of the Hauran Plateau. It is one of three main tributaries which enter the Jordan between the Sea of Galilee and the Dead Sea. To the south, are the Jabbok/Zarqa and the Arnon/Wadi Mujib) rivers...

, which had a good supply of pasture and water and where cavalry could be used more effectively. Abu Ubaidah, in a council of war, transferred the supreme command of the Muslim forces to Khalid, who acted as a field commander in the battle and was the mastermind of the annihilation of the Byzantine army.

On 15 August, the Battle of Yarmouk was fought, it lasted for 6 days and ended in a devastating defeat for the Byzantines. The Battle of Yarmouk is considered to be one of the most decisive battles of history. It was a historic defeat that sealed the fate of Byzantium in the Levant, the magnitude of the defeat was so intense that Byzantine forces were unable to recover from it for some time. It left the whole of the Byzantine Empire vulnerable to the Muslim Arab armies. The battle was the greatest battle ever fought on Syrian soil up to that point, and is believed to be the tactical marvel of Khalid.

Capturing Jerusalem

With the Byzantine army shattered and routed, the Muslims quickly recaptured the territory that they conquered prior to Yarmouk. The Muslim forces moved south to a last Byzantine stronghold, Jerusalem, where many of the Byzantine survivors of the disaster at Yarmouk took shelter. The Siege of Jerusalem lasted four months after which the city agreed to surrender, but only to the caliph in person. Amr ibn al-Aas, one of the four corps commander, suggested that Khalid should be sent as caliph, because of his very strong resemblance with Caliph Umar. Khalid was recognized and eventually, Umar came and Jerusalem surrendered
Siege of Jerusalem (637)
The Siege of Jerusalem was a part of a military conflict which took place in the year 637 between the Byzantine Empire and the Rashidun Caliphate. It began when the Rashidun army, under the command of Abu Ubaidah, besieged Jerusalem in November 636. After six months, the Patriarch Sophronius...

 in April 637. After Jerusalem, the Muslim armies broke up once again. Yazid’s corps came to Damascus and captured Beirut. Amr and Shurhabil’s corps went on to conquer the rest of Palestine, while Abu Ubaidah and Khalid, at the head of a 17,000 strong army moved north to conquer whole of the Northern Syria.

Conquest of Northern Syria

With Emesa already in hand, Abu Ubaidah and Khalid moved towards Chalcis, which was strategically the most significant fort of Byzantines. Through Chalcis, the Byzantines would guard Anatolia
Anatolia
Anatolia is a geographic and historical term denoting the westernmost protrusion of Asia, comprising the majority of the Republic of Turkey...

, Heraclius' homeland Armenia
Armenia
Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

 and the Asian zone's capital Antioch
Antioch
Antioch on the Orontes was an ancient city on the eastern side of the Orontes River. It is near the modern city of Antakya, Turkey.Founded near the end of the 4th century BC by Seleucus I Nicator, one of Alexander the Great's generals, Antioch eventually rivaled Alexandria as the chief city of the...

. Abu Ubaidah sent Khalid with his elite mobile guard towards Chalcis. The fort was guarded by the Greek troops under their commander, Menas, who was reported to be of high prestige, second only to the emperor himself. Menas, diverting from conventional Byzantine tactics, decided to face Khalid and destroy the leading elements of the Muslim army before the main body could join them at Hazir, 5 km east of Chalcis. The Roman army was totally annihilated at the Battle of Hazir
Battle of Hazir
Battle of Hazir took place between the Byzantine army and Rashidun army's elite cavalry the Mobile guard, in June 637, 3 miles east of Qinnasrin at Hazir in present-day Syria.-Background:...

, which even forced Umar to praise Khalid's military genius. Umar is reported to have said:
"Khalid is truly the commander, May Allah have mercy upon Abu Bakr. He was a better judge of men than I have been".

Abu Ubaidah soon joined Khalid at the virtually impregnable fort of Chalcis, which surrendered in June 637. With this strategic victory, the territory north of Chalcis lay open to the Muslims. Khalid and Abu Ubaidah next captured Aleppo
Siege of Aleppo
The Siege of Aleppo, the Byzantine stronghold and one of few remaining Byzantine castles in the northern Levant after the decisive Battle of Yarmouk, was laid between July and October 637.-Background:...

 from desperate Byzantine troops in October 637. The next objective was the splendid city of Antioch, the capital of the Asian zone of the Byzantine Empire.
Before marching towards Antioch, Khalid and Abu Ubaidah decided to isolate the city from Anatolia; this was done by capturing all the fortresses that were providing strategic defense to Antioch, most importantly A'zāz
A'zaz
Azaz is a small town in Syria, roughly 20 miles north-northwest of Aleppo . It is most notable for being the site of the Battle of Azaz between the Crusader States and the Seljuk Turks on June 11, 1125.-History:...

 at north east of Antioch. In order to save the empire from annihilation, a desperate battle was fought between the Muslim army and that of the defenders of Antioch outside the city near Orontes river, popularly known as Battle of Iron bridge
Battle of Iron bridge
The Battle of Iron Bridge was fought between the Muslim Rashidun army and the Byzantine army in 637 AD. The battle was fought near a nine-arch stone bridge spanning the River Orontes, from which the battle took its name. The campaigns in Anatolia were undertaken after the decisive Rashidun...

. The Byzantine army was composed of the survivors of Yarmouk and other Syrian campaigns. After being defeated, the Byzantines retreated to Antioch and the Muslims besieged the city. Having little hope of help from emperor, Antioch surrendered on 30 October 637, with the terms that all Byzantine troops would be given safe passage to Constantinople
Constantinople
Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

.
Abu Ubaidah sent Khalid northwards, while he marched south and captured Lazkia, Jabla, Tartus and the coastal areas west of Anti-Lebanon mountains. Khalid moved north and raided territory up to the Kızıl River (Kızılırmak) in Anatolia. Emperor Heraclius had already left Antioch for Edessa
Edessa, Mesopotamia
Edessa is the Greek name of an Aramaic town in northern Mesopotamia, as refounded by Seleucus I Nicator. For the modern history of the city, see Şanlıurfa.-Names:...

 before the arrival of the Muslims. He arranged for the necessary defenses in Jazira
Al-Jazira, Mesopotamia
Upper Mesopotamia is the name used for the uplands and great outwash plain of northwestern Iraq and northeastern Syria and southeastern Turkey which is known by the traditional Arabic name of Al-Jazira , variously transliterated into Roman script as Djazirah, Djezirah and Jazirah...

 and Armenia and left for his capital Constantinople. On his way to Constantinople he had a narrow escape when Khalid, after the capturing Marash
Siege of Marash
The Siege of Marash was led by Muslim forces of the Rashidun Caliphate during their campaigns in Anatolia in 638. The city surrendered without much bloodshed...

, was heading south towards Munbij. Heraclius hastily took the mountainous path and, passing though the Cilician Gates
Cilician Gates
The Cilician Gates or Gülek Pass is a pass through the Taurus Mountains connecting the low plains of Cilicia to the Anatolian Plateau, by way of the narrow gorge of the Gökoluk River. Its highest elevation is about 1000m....

, is reported to have said:

With the devastating defeat at Yarmouk his empire was extremely vulnerable to Muslim invasion. With few military resources left he was no longer in a position to attempt a military come back in Syria. To gain time for the preparations of the defense of the rest of his empire, Heraclius needed the Muslims occupied in Syria. He sought help of the Christian Arabs of Jazira
Al-Jazira, Mesopotamia
Upper Mesopotamia is the name used for the uplands and great outwash plain of northwestern Iraq and northeastern Syria and southeastern Turkey which is known by the traditional Arabic name of Al-Jazira , variously transliterated into Roman script as Djazirah, Djezirah and Jazirah...

 who mustered up a large army and marched against Emesa, Abu Ubaidah’s headquarters. Abu Ubaidah withdrew all his forces from Northern Syria to Emesa, and Christian Arabs laid siege to Emesa. Khalid was in favor of an open battle outside fort, but Abu Ubaidah rather sent the matter to Umar, who brilliantly handled it. Umar sent detachment of Muslim armies from Iraq to invade Jazira, homeland of the invading Christian Arabs, from three different routes. Moreover, another detachment was sent to Emesa from Iraq under Qa’qa ibn Amr, a veteran of Yarmouk who was sent to Iraq for the Battle of al-Qādisiyyah
Battle of al-Qadisiyyah
The Battle of al-Qādisiyyah was fought in 636; it was the decisive engagement between the Arab muslim army and the Sassanid Persian army during the first period of Muslim expansion. It resulted in the Islamic conquest of Persia, and was key to the conquest of Iraq...

. Umar himself marched from Medina ahead of 1,000 men. The Christian Arabs, under this overwhelming response, abandoned the siege and hastily withdrew to Jazira. At this point Khalid and his mobile guard came out of Emesa and devastated their army, attacking them from rear.
This was Heraclius' last attempt to achieve a comeback on the Syrian front.

Campaigns in Armenia and Anatolia

After the battle, Umar ordered the conquest of Jazira
Al-Jazira, Mesopotamia
Upper Mesopotamia is the name used for the uplands and great outwash plain of northwestern Iraq and northeastern Syria and southeastern Turkey which is known by the traditional Arabic name of Al-Jazira , variously transliterated into Roman script as Djazirah, Djezirah and Jazirah...

 which was completed by late summer 638. After the conquest of Jazira Abu Ubaidah sent Khalid and Ayaz ibn Ghanam (conqueror of Jazira) to invade the Byzantine territory north of Jazira. They marched independently and captured Edessa, Amida
Diyarbakır
Diyarbakır is one of the largest cities in southeastern Turkey...

 (Diyarbakır), Malatya
Malatya
Malatya ) is a city in southeastern Turkey and the capital of its eponymous province.-Overview:The city site has been occupied for thousands of years. The Assyrians called the city Meliddu. Following Roman expansion into the east, the city was renamed in Latin as Melitene...

 and raided Byzantine Armenia
Byzantine Armenia
Byzantine Armenia is the name given to the Armenian part of the Byzantine Empire. The size of the territory varied over time, depending on the degree of control the Byzantines had over Armenia....

 up to Ararat region
Ararat (village), Armenia
Ararat is a village in the Ararat Province of Armenia. Ararat village was host to the first CYMA - Canadian Youth Mission to Armenia led by Ronald Alepian in 1993.- References :*...

 and also reportedly raided central Anatolia. Heraclius had already abandoned all the forts between Antioch and Tartus to create a buffer zone
Buffer zone
A buffer zone is generally a zonal area that lies between two or more other areas , but depending on the type of buffer zone, the reason for it may be to segregate regions or to conjoin them....

 or no man's land
No man's land
No man's land is a term for land that is unoccupied or is under dispute between parties that leave it unoccupied due to fear or uncertainty. The term was originally used to define a contested territory or a dumping ground for refuse between fiefdoms...

 between Muslim controlled areas and main land Anatolia.
Umar for the time stopped his armies from advancing further into Anatolia, and instead ordered Abu Ubaidah, now governor of Syria, to consolidate his rule in conquered land of the Levant
Levant
The Levant or ) is the geographic region and culture zone of the "eastern Mediterranean littoral between Anatolia and Egypt" . The Levant includes most of modern Lebanon, Syria, Jordan, Israel, the Palestinian territories, and sometimes parts of Turkey and Iraq, and corresponds roughly to the...

. At this point Umar is reported to have said:
"I wish there was a wall of fire between us and Romans, so that they could not enter our territory nor we could enter theirs".
Due to the dismissal of Khalid from the army and a famine and plague the next year, the Muslim armies were kept from invading Anatolia. The expedition to Anatolia and Armenia marked the end of the military career of Khalid.

Dismissal from army

Khalid, by now, was at the height of his career, he was famous and loved by his men, for Muslim community he was a national hero, and was publicly known as Sayf-ullah ("Sword of Allah".)
In one occasion, when Khalid, during his stay at Emesa had a special bath with a certain substance prepared with alcoholic mixture. Umar's spies informed him of the incident, as alcohol is forbidden in Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

, and Umar took notice of it asking Khalid to explain himself. Khalid felt that this was carrying the Muslim ban on alcohol a bit too far, which dealt only with the drinking of Alcohol not its external applications, and the excuse was apparently enough for Umar and the senate at Madina to be satisfied.
Another event happened shortly after Khalid's capture of Marash
Kahramanmaras
-Industry:Kahramanmaraş's industry is mainly based on textile and ice cream. Kahramanmaraş is one of the biggest textile industry cities of Turkey. Companies like Kipaş, İskur, Arsan and Bozkurt are one of the richest companies in the city...

 (Kahramanmaraş), in the autumn of 638, he came to know of Ash'as, a famous poet and warrior on Persian front, reciting a poem in praise of Khalid and receiving a gift of 10,000 dirham
Dirham
Dirham or dirhem is a unit of currency in several Arab or Berber nations, and formerly the related unit of mass in the Ottoman Empire and Persian states...

s from him, apparently from the state treasury.

Umar and his senate identified this act as misuse of state treasure, though not as punishing as to lose one's office, but in case of Khalid this was the excuse what Umar apparently needed. He immediately wrote a letter to Abu Ubaidah asking him to bring Khalid in front of the congregation, his turban, and take off his cap. Umar wanted Abu Ubaida to ask Khalid from what funds he gave to Ash'as: from his own pocket or from the state treasury? If he confessed to having used the spoils, he was guilty of misappropriation. If he claimed that he gave from his own pocket, he was guilty of extravagance. In either case he would be dismissed, and Abu Ubaida would take charge of his duties. Abu Ubaida was himself an admirer of Khalid and loved him as his younger brother, and so said that he was not capable of doing it. Instead, Bilal ibn Ribah
Bilal ibn Ribah
Bilal ibn Rabah or Bilal al-Habashi was an Ethiopian born in Mecca in the late 6th century, sometime between 578 and 582.The Islamic prophet Muhammad chose a former African slave Bilal as his muezzin, effectively making him the first muezzin of the Islamic faith...

 was appointed for this task and called back Khalid from Chalcis
Chalcis, Syria
Chalcis was an ancient city in Syria. Syrian Chalcis was the birthplace of 3rd century Neoplatonist philosopher Iamblichus.It is thought to be the site of the modern town of Qinnasrin, though Anjar in Lebanon has also been suggested as the site of ancient Chalcis....

 to Emessa, where he was charged publicly. Khalid stated that he gave money from his own pocket and thus was declared innocent in that charge. However, when he went to Abu Ubaida, he told him that he had been dismissed on the order of Umar and is required to go back to Medina.
Khalid went to Chalcis
Chalcis
Chalcis or Chalkida , the chief town of the island of Euboea in Greece, is situated on the strait of the Evripos at its narrowest point. The name is preserved from antiquity and is derived from the Greek χαλκός , though there is no trace of any mines in the area...

 and said good bye to his mobile guard
Mobile guard
The Mobile Guard was an elite light cavalry regiment of Rashidun army during the Muslim conquest of Syria, under the command of Khalid ibn Walid...

. He then went to Medina to meet Umar. He protested about what he considered to be injustice. Umar is said to have praised him in these words:
"You have done; And no man has done as you have done. But it is not people who do; It is Allah who does..."
Later Umar explained his dismissal of Khalid:
It was in this way that Khalid's successful military career came to an end.

Death

Although it is believed that relations between Umar and Khalid, cousins, were always something short of cordial, both of them apparently harboured no ill-will towards each other. Upon his death, he bequeathed his property to Umar and made him the executor of his will and estate.
Within less than four years of his dismissal, Khalid died and was buried in 642 in Emesa, where he lived since his dismissal from military services. His tomb is now part of a mosque
Mosque
A mosque is a place of worship for followers of Islam. The word is likely to have entered the English language through French , from Portuguese , from Spanish , and from Berber , ultimately originating in — . The Arabic word masjid literally means a place of prostration...

 called Khalid ibn al-Walid Mosque
Khalid ibn al-Walid Mosque
The Khaled ibn al-Walid Mosque is a mosque in Homs, Syria, located in a park along Hama Street in ash-Shuhada Square. It is of recent construction compared to the city's major mosques, built by the Ottomans around 1908...

. Khalid's tombstone
Headstone
A headstone, tombstone, or gravestone is a marker, usually stone, that is placed over a grave. In most cases they have the deceased's name, date of birth, and date of death inscribed on them, along with a personal message, or prayer.- Use :...

 depicts a list of over 50 victorious battles that he commanded without defeat (not including small battles). It is said that he had wanted to die as a martyr
Martyr
A martyr is somebody who suffers persecution and death for refusing to renounce, or accept, a belief or cause, usually religious.-Meaning:...

 in the field of battle, and was apparently disappointed when he knew that he would die in bed. Khalid expressed the pain of this sadness through one last, anguished sentence:

The wife of Khalid, upon feeling such a pain of her husband told Khalid: "You were given the title of 'Saif-ullah' meaning, 'The Sword of Allah' and, the sword of Allah is not meant to be broken and hence, it is not your destiny to be a 'martyr' but to die like a conqueror."

Military

Khalid is said to have fought around a hundred battles, both major battles and minor skirmishes as well as single duels, during his military career. Having remained undefeated, this fact makes him one of the finest military generals in history.

Khalid was the architect of most of the early Muslim military doctrines, he was pioneer of almost every major tactic that Muslims used during Early Islamic conquest. One of Khalid's major achievements in this context was utilizing the individual skills of Arab Bedouin warriors to a larger scale. He is believed to have developed them into an almost regular unit called Mubarizun
Mubarizun
Mubarizun was the special unit of the Rashidun army. It was composed of the elite warriors, who were the champion swordsmen, lancers and archers. In that era, battles usually were preluded by duels between the champion warriors of the opposing armies...

("champions"), who would issue personal challenges to the enemy officers. These were highly trained and skilled swordsmen, whom Khalid utilized effectively to slay as many enemy officers as possible, giving a psychological blow to enemy morale. The Battle of Ajnadayn
Battle of Ajnadayn
The Battle of Ajnadayn, fought on July 30, 634, south of Beit Shemesh in present day Israel, was the first major pitched battle between the Eastern Roman Empire and the army of the Arabic Rashidun Caliphate. The result of the battle was a decisive Muslim victory...

 is perhaps the best example of this form of psychological warfare
Psychological warfare
Psychological warfare , or the basic aspects of modern psychological operations , have been known by many other names or terms, including Psy Ops, Political Warfare, “Hearts and Minds,” and Propaganda...

. Moreover his biggest achievement was the conversion of Arab tactical doctrine into a strategic system. Until Khalid, the Arabs were basically raiders and skirmishers. Khalid turned those skirmishing tactics into something that could be used anywhere. Thus he would skirmish the enemy to death: he would bring his army in front of his enemies and wait until the whole battle degenerated into a skirmishing affair between small units. Then, after exhausting the enemy units, he would launch his cavalry at their flanks employing Hammer and Anvil
Hammer and anvil
The Hammer and Anvil tactic is a military tactic used since the beginning of organized warfare. It was used mostly in the ancient world, including by Alexander the Great.- The procedure :...

 tactics.

Much of Khalid's strategic and tactical genius lies in his use of extreme methods. He apparently put more emphasis on annihilating enemy troops, rather than achieving victory by simply defeating them. For instance his employment of the double envelopment
Pincer movement
The pincer movement or double envelopment is a military maneuver. The flanks of the opponent are attacked simultaneously in a pinching motion after the opponent has advanced towards the center of an army which is responding by moving its outside forces to the enemy's flanks, in order to surround it...

 maneuver against the numerically superior Persian army at the Battle of Walaja
Battle of Walaja
The Battle of Walaja was a battle fought in Mesopotamia in May 633 between the Rashidun Caliphate army under Khalid ibn al-Walid and al muthanna ibn haarithah against the Persian Empire and its Arab allies...

, and his brilliant maneuver at the Battle of Yarmouk
Battle of Yarmouk
The Battle of Yarmouk was a major battle between the Muslim Arab forces of the Rashidun Caliphate and the armies of the East Roman-Byzantine Empire. The battle consisted of a series of engagements that lasted for six days in August 636, near the Yarmouk River, along what is today the border...

 where he virtually trapped the Byzantine army between three steep ravines by stealthily capturing their only escape route, a bridge, at their rear.

Khalid utilized his better understanding of terrain in every possible way to gain strategic superiority over his enemies. During his Persian campaigns, he initially never entered deep into Persian territory and always kept the Arabian desert at his rear, allowing his forces to retreat there in case of a defeat. It was only after all the strong Persian and Persian-allied forces were routed that he penetrated deep into Euphrates region
Euphrates
The Euphrates is the longest and one of the most historically important rivers of Western Asia. Together with the Tigris, it is one of the two defining rivers of Mesopotamia...

 and captured
Battle of Hira
Al-Hirah city, widely known for its size and wealth, was a Sassanian dukedom as it was the capital of the Persian province of Iraq. Many of its Lakhmid Christian Arab inhabitants patrolled the desert on behalf of the Sassanians...

 the regional capital of Iraq, Al-Hira. Again, at Yarmouk, the terrain would help him in executing his grand strategy of annihilating the Byzantines.

In their mobility, Khalid's troops had no match until the Mongol hordes of the 13th century. In fact the tactics of the desert Arabs and steppe
Steppe
In physical geography, steppe is an ecoregion, in the montane grasslands and shrublands and temperate grasslands, savannas, and shrublands biomes, characterized by grassland plains without trees apart from those near rivers and lakes...

 Mongols
Mongols
Mongols ) are a Central-East Asian ethnic group that lives mainly in the countries of Mongolia, China, and Russia. In China, ethnic Mongols can be found mainly in the central north region of China such as Inner Mongolia...

 were somewhat identical. Entire troops of Khalid would ride on camels while on march, whereas the Mongols used horses, with the difference that the Arabs did not make use of mounted archers. His most commonly used maneuver was surprise attack, also apparently his favorite one. Some of the most brilliant surprise attacks of Khalid were his night attacks from three different sides on Persian camps at Zumail
Battle of Zumail
The battle of Zumail was fought in 633 CE in what is now Iraq. It was a major Muslim victory in their conquest of that area. Under cover of night the Muslims attacked the Christian-Arab forces from three different sides...

, Muzayyah
Battle of Muzayyah
When Khalid ibn Walid left from Ain-ul-Tamr to Daumat ul jandal for the help of Ayadh, the Persian court believed that Khalid had returned to Arabia with a large part of his army. The Persians decided to throw the Muslims back into the desert and regain the territories and the prestige which the...

 and Saniyy
Battle of Saniyy
When Khalid ibn Walid gone from Ain-ul-Tamr to Daumat ul jandal for the help of Ayadh. The Persian court believed that Khalid had returned to Arabia with a large part of his army, Persians decided to throw the Muslims back into the desert and regain the territories and the prestige which the...

, his highly mobile army successfully maneuvering in a 100 km area, quickly destroying encampments of the Persians and their Arab allies. The Battle of Maraj-al-Debaj
Battle of Maraj-al-Debaj
Battle of Marj-ud-Deebaj was fought between the Byzantine army, survivors from the conquest of Damascus, and the Rashidun Caliphate army in September 634...

 being no exception, where once again his highly mobile army maneuvered around a Byzantine army, appearing from four directions and opening several fronts at a time, a maneuver which later in 13th century became one of the Mongol armies' principal maneuvers.

An example of Khalid's strategic maneuverability
Maneuver warfare
Maneuver warfare, or manoeuvre warfare , is the term used by military theorists for a concept of warfare that advocates attempting to defeat an adversary by incapacitating their decision-making through shock and disruption brought about by movement...

 was his advance into Roman Syria. Emperor Heraclius had sent all his available garrisoned troops into Syria, towards Ajnadayn
Battle of Ajnadayn
The Battle of Ajnadayn, fought on July 30, 634, south of Beit Shemesh in present day Israel, was the first major pitched battle between the Eastern Roman Empire and the army of the Arabic Rashidun Caliphate. The result of the battle was a decisive Muslim victory...

, to hold the Muslim troops at the Syria-Arabia border region. The possible route of any Muslim reinforcement was expected to be the conventional Syria-Arabia road in the south, but Khalid, who was then in Iraq, took the most unexpected route: marching through the waterless Syrian desert
Syrian Desert
The Syrian Desert , also known as the Syro-Arabian desert is a combination of steppe and true desert that is located in the northern Arabian Peninsula covering 200,000 square miles . also the desert is very rocky and flat...

, to the surprise of the Byzantines, he appeared in northern Syria. Catching the Byzantines off guard, he quickly captured several towns, virtually cutting off the communications of the Byzantine army at Ajnadayn with its high command at Emesa, where emperor Heraclius himself resided.

Khalid's elite light cavalry
Light cavalry
Light cavalry refers to lightly armed and lightly armored troops mounted on horses, as opposed to heavy cavalry, where the riders are heavily armored...

, the Mobile guard
Mobile guard
The Mobile Guard was an elite light cavalry regiment of Rashidun army during the Muslim conquest of Syria, under the command of Khalid ibn Walid...

, acted as the core of the Muslim cavalry during the invasion of Syria. It was composed of highly trained and seasoned soldiers, the majority of whom had been under Khalid's standard during his Arabian and Persian campaigns. Muslim cavalry was a light cavalry force armed with 5 meter long lances. They could charge at an incredible speed and would usually employ a common tactic of Kar wa far literary meaning "engage-disengage", or in modern term: “hit-and-run.” They would charge on enemy flanks and rear, their maneuverability making them very effective against heavily armored Byzantine and Sassanid cataphract
Cataphract
A cataphract was a form of armored heavy cavalry utilised in ancient warfare by a number of peoples in Western Eurasia and the Eurasian Steppe....

s. Khalid's famous flanking charge
Flanking maneuver
In military tactics, a flanking maneuver, also called a flank attack, is an attack on the sides of an opposing force. If a flanking maneuver succeeds, the opposing force would be surrounded from two or more directions, which significantly reduces the maneuverability of the outflanked force and its...

 on the final day of the Battle of Yarmouk stands as testimony to just how well he understood the potentials and strengths of his mounted troops.

Arabs soldiers were far more lightly armored then their Roman and Persian contemporaries, which made them vulnerable in close combat at set-piece battles and to missile fire of enemy archers. Khalid therefore never blundered in the battle and would rely on intelligence reports from spies that he would hire from local population on liberal rewards.
Persian Historian Al-Tabari
Muhammad ibn Jarir al-Tabari
Abu Ja'far Muhammad ibn Jarir al-Tabari was a prominent and influential Sunni scholar and exegete of the Qur'an from Persia...

 said:

Political

Khalid also remained military Governor of Iraq from 632–633 and Governor of Chalcis
Chalcis, Syria
Chalcis was an ancient city in Syria. Syrian Chalcis was the birthplace of 3rd century Neoplatonist philosopher Iamblichus.It is thought to be the site of the modern town of Qinnasrin, though Anjar in Lebanon has also been suggested as the site of ancient Chalcis....

, the most strategic cantonment in Northern Syria.
Though he was never active politically but his fame alarmed Umar, who then recalled him from army.

Umar is said to have later regret to this decision. It is said that after the Hajj of 642, Umar had decided to re-appoint Khalid to the military services apparently to command the Muslim conquest of Persia that was to begin shortly. But fate had decided otherwise, as when he reached Medina, news of Khalid's death reached him. The news of Khalid's death broke like a storm over Medina. The women took to the streets, led by the women of the Banu Makhzum
Banu Makhzum
Banū Makhzūm was one of the wealthy clans of Quraysh, the Arab tribe of the Islamic prophet Muhammad.Famous individuals of the Banū Makhzūm include*Amr ibn Hishām better known as Abu Al-Hakam or Abu Jahl*Walid ibn al-Mughira...

 (Khalid's tribe), wailing and beating their chests. Though Umar, from the very first day had given orders that there would be no wailing for departed Muslims, as forbidden in Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

, in this one case he made an exception.
Umar said:

It is also recorded that once Umar was sitting with his companions, someone recalled Khalid, Umar reportedly said:
"By God, he was Islam's shield against the enemies, his heart was pure from every animosity". Ali, who was there, reportedly said: "Then why did you dismiss him from military services?" Umar replied flatly: "I was wrong".
According to some narrations, on Umar’s death bed, Umar named people who he would have appointed as successors to the Caliphate if they had been alive, and amongst those he named was Khalid.

Religious standing

Khalid ibn Walid was a Sahabi
Sahaba
In Islam, the ' were the companions, disciples, scribes and family of the Islamic prophet...

 (a companion of Muhammad), a fact which makes him a very respectable figure among Sunni Muslim
Muslim
A Muslim, also spelled Moslem, is an adherent of Islam, a monotheistic, Abrahamic religion based on the Quran, which Muslims consider the verbatim word of God as revealed to prophet Muhammad. "Muslim" is the Arabic term for "submitter" .Muslims believe that God is one and incomparable...

s. Shia Muslims, however, do not esteem him because they believe that he helped Abu Bakr in suppressing the supporters of their Imam Ali
Ali
' |Ramaḍān]], 40 AH; approximately October 23, 598 or 600 or March 17, 599 – January 27, 661).His father's name was Abu Talib. Ali was also the cousin and son-in-law of the Islamic prophet Muhammad, and ruled over the Islamic Caliphate from 656 to 661, and was the first male convert to Islam...

, who, according to them, was appointed by Muhammad as his political successor.

In popular culture

  • Khalid's reputation as a formidable general led to his inclusion as a Great General in the Warlords
    Civilization IV: Warlords
    Civilization IV: Warlords is the first official expansion pack of the critically acclaimed turn-based strategy video game Civilization IV.-Features:Warlords added many new features to the original game...

    expansion
    Expansion pack
    An expansion pack, expansion set, or supplement is an addition to an existing role-playing game, tabletop game or video game. These add-ons usually add new game areas, weapons, objects, and/or an extended storyline to a complete and already released game...

     to the Civilization IV
    Civilization IV
    Sid Meier's Civilization IV is a turn-based strategy, 4X computer game released in 2005 and developed by lead designer Soren Johnson under the direction of Sid Meier and Meier's studio Firaxis Games. It is the fourth installment of the Civilization series...

    video game, which attempts to include real historical people into its gameplay
    Gameplay
    Gameplay is the specific way in which players interact with a game, and in particular with video games. Gameplay is the pattern defined through the game rules, connection between player and the game, challenges and overcoming them, plot and player's connection with it...

    .
  • Pakistan Army
    Pakistan Army
    The Pakistan Army is the branch of the Pakistani Armed Forces responsible for land-based military operations. The Pakistan Army came into existence after the Partition of India and the resulting independence of Pakistan in 1947. It is currently headed by General Ashfaq Parvez Kayani. The Pakistan...

    's main battle tank
    Main battle tank
    A main battle tank , also known as a battle tank or universal tank, is a tank that fills the heavy direct fire role of many modern armies. They were originally conceived to replace the light, medium, heavy and super-heavy tanks. Development was spurred onwards in the Cold War with the development...

     (MBT), Al-Khalid or MBT 2000, is named after Khalid ibn al-Walid.
  • Pakistan Navy
    Pakistan Navy
    The Pakistan Navy is the naval warfare/service branch of the Pakistan Armed Forces. Pakistan's Navy is responsible for Pakistan's coastline along the Arabian Sea and the defense of important civilian harbors and military bases...

    's Agosta 90B class submarine
    Agosta 90B class submarine
    The Agosta class submarines are French diesel attack submarines used by Spain, Pakistan and formerly by France. The French Navy grouped this model of submarine in their most capable class as an océanique, meaning "ocean-going." A modernised version built for Pakistan, the Agosta 90B, has a crew of...

    , PNS/M Khalid (S137)
  • The Bangladesh Navy
    Bangladesh Navy
    The Bangladesh Navy is the naval arm of the Bangladesh Armed Forces. At present the navy is mostly limited to coastal patrolling, however it is implementing an ambitious procurement and expansion program to ensure the security of Bangladesh's maritime boundary...

    's frigate
    Frigate
    A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...

     BNS Khalid Bin Walid
    BNS Khalid Bin Walid
    BNS Khalid Bin Walid is a Guided Missile Frigate of the Bangladesh Navy, and is one of the most modern currently in service. She is currently moored at Chittagong, serving with the Commodore Commanding BN Flotilla...

    is named after him.
  • Kazi Nazrul Islam
    Kazi Nazrul Islam
    Kazi Nazrul Islam , sobriquet Bidrohi Kobi, was a Bengali poet, musician and revolutionary who pioneered poetic works espousing intense spiritual rebellion against fascism and oppression. His poetry and nationalist activism earned him the popular title of Bidrohi Kobi...

     wrote a popular poem named "Khaled" while he was suffering from malaria
    Malaria
    Malaria is a mosquito-borne infectious disease of humans and other animals caused by eukaryotic protists of the genus Plasmodium. The disease results from the multiplication of Plasmodium parasites within red blood cells, causing symptoms that typically include fever and headache, in severe cases...

    , showing his respect to Khaled and grief for his colonized countrymen.
  • The troops sent by the Pakistan Army
    Pakistan Army
    The Pakistan Army is the branch of the Pakistani Armed Forces responsible for land-based military operations. The Pakistan Army came into existence after the Partition of India and the resulting independence of Pakistan in 1947. It is currently headed by General Ashfaq Parvez Kayani. The Pakistan...

     in the Gulf War
    Gulf War
    The Persian Gulf War , commonly referred to as simply the Gulf War, was a war waged by a U.N.-authorized coalition force from 34 nations led by the United States, against Iraq in response to Iraq's invasion and annexation of Kuwait.The war is also known under other names, such as the First Gulf...

     in Operation Desert Storm was named "Khalid Bin Walid Independent Armoured Brigade Group." It has been in active service in Saudi Arabia
    Saudi Arabia
    The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...

     since.

Family

Khalid's father name was Walid ibn al-Mughira
Walid ibn al-Mughira
Walid ibn Mughira was the chief of the Banu Makhzum clan of the Quraish Tribe. His clan was responsible for warfare, and he was wealthy. These two factors combined to make him proficient in warfare.-Family:...

 and his mother name was Lubabah as-Saghirah. Walid reportedly had many wives and many children from them. Only the names of his following children are recorded in history.
Walid's sons were: (Khalid's brothers)
  • Hisham ibn Walid
  • Walid ibn Walid
  • Ammarah ibn Walid
  • Abdul Shams ibn Walid.

Walid's daughters were: (Khalid's sisters)
  • Faktah bint Walid
  • Fatimah bint Walid.
  • Najiyah bint al-Walid
    Najiyah bint al-Walid
    Najiyah bint al-Walid ibn al-Mughira is a sahaba of Muhammad. She is the daughter of Walid ibn Mughira and married Safwan ibn Umayya.Najiyah was one of women who became Muslim before their husbands did. Some of these women were prevented from doing the hijra while their husbands were still...

    (Disputed).


It is unknown how many children Khalid ibn al-Walid had, but names of his three sons and one known daughter are mentioned in history which are as follows:
  • Sulaiman bin Khalid
  • Abdulrehman ibn Khalid
  • Muhajir bin Khalid.


Sulaiman, Khalid's eldest son, was killed during the Muslim conquest of Egypt
Muslim conquest of Egypt
At the commencement of the Muslims conquest of Egypt, Egypt was part of the Byzantine Empire with its capital in Constantinople. However, it had been occupied just a decade before by the Persian Empire under Khosrau II...

, Muhajir bin Khalid died in the Battle of Siffin
Battle of Siffin
The Battle of Siffin occurred during the First Fitna, or first Muslim civil war, with the main engagement taking place from July 26 to July 28. It was fought between Ali ibn Abi Talib and Muawiyah I, on the banks of the Euphrates river, in what is now Ar-Raqqah, Syria...

 while fighting from Caliph Ali's
Ali
' |Ramaḍān]], 40 AH; approximately October 23, 598 or 600 or March 17, 599 – January 27, 661).His father's name was Abu Talib. Ali was also the cousin and son-in-law of the Islamic prophet Muhammad, and ruled over the Islamic Caliphate from 656 to 661, and was the first male convert to Islam...

 side and Abdulreman ibn Khalid remained Governor of Emesa during the time of third Caliph Uthman ibn Affan and participated in the Battle of Siffin as one of the generals of Muawiyah I
Muawiyah I
Muawiyah I was the first Caliph of the Umayyad Dynasty. After the conquest of Mecca by the Muslims, Muawiyah's family converted to Islam. Muawiyah is brother-in-law to Muhammad who married his sister Ramlah bint Abi-Sufyan in 1AH...

, he was also the part of Umayyad army that besieged Constantinople in 664. Abdulreman was later to be appointed the successor of Caliph Muawiyah but according to some narrations, he was poisoned by Muawiyah, because Muawiyah wanted to make his son Yazid I
Yazid I
Yazīd ibn Mu‘āwiya ibn Abī Sufyān , commonly known as Yazid I, was the second Caliph of the Umayyad Caliphate . He ruled for three years from 680 CE until his death in 683 CE. Many Muslims condemn Yazid's rule as contentious and unjust...

 to be his successor. The male line of descent from Khalid is believed to have ended with his grandson, Khalid bin Abdur-Rahman bin Khalid.

See also

:Category:Battles of Khalid ibn Walid
  • List of famous Arabs
  • Sunni view of the Sahaba

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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