Zanzibar Revolution
Encyclopedia
The Zanzibar Revolution by local African revolutionaries in 1964 overthrew the Sultan of Zanzibar and his mainly Arab
Arab
Arab people, also known as Arabs , are a panethnicity primarily living in the Arab world, which is located in Western Asia and North Africa. They are identified as such on one or more of genealogical, linguistic, or cultural grounds, with tribal affiliations, and intra-tribal relationships playing...

 government. An ethnically diverse state consisting of a number of islands off the east coast of Tanganyika
Tanganyika
Tanganyika , later formally the Republic of Tanganyika, was a sovereign state in East Africa from 1961 to 1964. It was situated between the Indian Ocean and the African Great Lakes of Lake Victoria, Lake Malawi and Lake Tanganyika...

, Zanzibar had been granted independence by Britain in 1963. Thereafter a series of parliamentary elections resulted in the Arab minority retaining the hold on power it had inherited from Zanzibar's former existence as an overseas territory of Oman
Oman
Oman , officially called the Sultanate of Oman , is an Arab state in southwest Asia on the southeast coast of the Arabian Peninsula. It is bordered by the United Arab Emirates to the northwest, Saudi Arabia to the west, and Yemen to the southwest. The coast is formed by the Arabian Sea on the...

. Frustrated by under-representation in Parliament despite winning 54% of the vote in the July 1963 election, the mainly African Afro-Shirazi Party
Afro-Shirazi Party
The Afro-Shirazi Party was the union between the mostly Shiraz Party and the mostly African Afro Party in the island of Zanzibar. The formation of ASP led to the ouster of the Arabs from power with the Zanzibar Revolution in 1964. The party joined with the Tanganyika African National Union to...

 (ASP) allied itself with the left-wing Umma Party
Umma Party (Zanzibar)
The Umma Party was a political party in Zanzibar. It was founded in 1963 from disaffected socialist Arabs from the ruling Zanzibar Nationalist Party. It was led by Abdulrahman Muhammad Babu and supported the Afro-Shirazi Party during the 1964 Zanzibar Revolution. Babu was made Minister of...

, and early on the morning of 12 January 1964 ASP member John Okello
John Okello
John Gideon Okello was an East African revolutionary and the leader of the Zanzibar Revolution in 1964. This revolution overthrew Sultan Jamshid bin Abdullah and led to the proclamation of Zanzibar as a republic.-Youth:...

 mobilised around 600–800 revolutionaries on the main island of Unguja
Unguja
Unguja as mentioned in The Periplus of the Erythraean Sea is the largest and most populated island of Zanzibar, in Tanzania.-Geography:...

. Having overrun the country's police force and appropriated their weaponry, the insurgents proceeded to Zanzibar Town where they overthrew the Sultan and his government. Reprisals against Arab and South Asian civilians on the island followed; the resulting death toll is disputed, with estimates ranging from several hundred to 20,000. The moderate ASP leader Abeid Karume
Abeid Karume
Sheikh Abeid Amani Karume , was the first President of Zanzibar. He obtained this title as a result of a popular revolution which lead to the deposing of the last Sultan in Zanzibar during...

 became the country's new president and head of state
Head of State
A head of state is the individual that serves as the chief public representative of a monarchy, republic, federation, commonwealth or other kind of state. His or her role generally includes legitimizing the state and exercising the political powers, functions, and duties granted to the head of...

, and positions of power were granted to Umma party members.

The new government's apparent communist ties concerned Western governments, and as Zanzibar lay within the British sphere of influence
Sphere of influence
In the field of international relations, a sphere of influence is a spatial region or conceptual division over which a state or organization has significant cultural, economic, military or political influence....

, the British government drew up a number of intervention plans. However, the feared communist takeover never materialised, and British and United States citizens were successfully evacuated, so these plans were not put into effect. Meanwhile, the communist bloc powers of P. R. China
People's Republic of China
China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

, East Germany and the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 established friendly relations with the new government by recognising the country and sending advisors. Karume negotiated a merger of Zanzibar with Tanganyika
Tanganyika
Tanganyika , later formally the Republic of Tanganyika, was a sovereign state in East Africa from 1961 to 1964. It was situated between the Indian Ocean and the African Great Lakes of Lake Victoria, Lake Malawi and Lake Tanganyika...

, forming the new nation of Tanzania
Tanzania
The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...

; an act judged by contemporary media to be an attempt to prevent communist subversion
Subversion
Apache Subversion is a software versioning and a revision control system distributed under a free license. Developers use Subversion to maintain current and historical versions of files such as source code, web pages, and documentation...

 of Zanzibar. The revolution ended 200 years of Arab dominance in Zanzibar, and is commemorated on the island each year with anniversary celebrations and a public holiday.

Background

The Zanzibar Archipelago
Zanzibar Archipelago
The Zanzibar Archipelago consists of several islands lying off the coast of East Africa in the Indian Ocean. There are two main islands, plus a host of smaller islets that surround them.-Main islands:...

, now part of the East African republic of Tanzania, is a group of islands lying in the Indian Ocean off the coast of Tanganyika. It comprises the main southern island of Unguja
Unguja
Unguja as mentioned in The Periplus of the Erythraean Sea is the largest and most populated island of Zanzibar, in Tanzania.-Geography:...

 (also known as Zanzibar), the smaller northern island of Pemba, and numerous surrounding islets. With a long history
History of Zanzibar
People have lived in Zanzibar for 20,000 years; history proper starts when the islands became a base for traders voyaging between Arabia, India, and Africa...

 of Arab rule dating back to 1698, Zanzibar was an overseas territory of Oman until it achieved independence in 1858 under its own Sultancy. In 1890 during Ali ibn Sa'id's reign, Zanzibar became a British protectorate
Protectorate
In history, the term protectorate has two different meanings. In its earliest inception, which has been adopted by modern international law, it is an autonomous territory that is protected diplomatically or militarily against third parties by a stronger state or entity...

, and although never formally under direct rule was considered part of the British Empire
British Empire
The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom. It originated with the overseas colonies and trading posts established by England in the late 16th and early 17th centuries. At its height, it was the...

.

By 1964, the country was a constitutional monarchy
Constitutional monarchy
Constitutional monarchy is a form of government in which a monarch acts as head of state within the parameters of a constitution, whether it be a written, uncodified or blended constitution...

 ruled by Sultan Jamshid bin Abdullah
Jamshid bin Abdullah of Zanzibar
Sayyid Sir Jamshid bin Abdullah Al Said GCMG, was the last Sultan of Zanzibar. He ruled Zanzibar from July 1, 1963 to January 12, 1964. On December 10, 1963, Zanzibar received its independence from the United Kingdom as a constitutional monarchy under Jamshid. This state of affairs was short...

. Zanzibar had a population of around 230,000 African
African people
African people refers to natives, inhabitants, or citizen of Africa and to people of African descent.-Etymology:Many etymological hypotheses that have been postulated for the ancient name "Africa":...

s—some of whom claimed Persian
Persian people
The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...

 ancestry and were known locally as Shirazi
Shirazi (ethnic group)
The Shirazi are a sub-group of the Swahili people living on the Swahili Coast of East Africa, especially on the islands of Zanzibar, Pemba and Comoros. Local traditions about their origin claim they are descended from merchant princes from Shiraz in Persia who settled along the Swahili Coast....

s—and also contained significant minorities in the 50,000 Arabs and 20,000 South Asians who were prominent in business and trade. The various ethnic groups were becoming mixed and the distinctions between them had blurred; according to one historian, an important reason for the general support for Sultan Jamshid was his family's ethnic diversity. However, the island's Arab inhabitants, as the major landowners, were generally wealthier than the Africans; the major political parties were organised largely along ethnic lines, with Arabs dominating the Zanzibar Nationalist Party
Zanzibar Nationalist Party
The Zanzibar Nationalist Party was a nationalist, Arab-dominated political party in Zanzibar. The ZNP, in a coalition with the African-dominated Zanzibar and Pemba People's Party , governed the island from 1961 to 1964....

 (ZNP) and Africans the Afro-Shirazi Party
Afro-Shirazi Party
The Afro-Shirazi Party was the union between the mostly Shiraz Party and the mostly African Afro Party in the island of Zanzibar. The formation of ASP led to the ouster of the Arabs from power with the Zanzibar Revolution in 1964. The party joined with the Tanganyika African National Union to...

 (ASP).

In January 1961, as part of the process of decolonisation, the island's British authorities drew up constituencies
Electoral district
An electoral district is a distinct territorial subdivision for holding a separate election for one or more seats in a legislative body...

 and held democratic elections. Both the ASP and the ZNP won 11 of the available 22 seats in Zanzibar's Parliament, so further elections were held in June with the number of seats increased to 23. The ZNP entered into a coalition with the Zanzibar and Pemba People's Party
Zanzibar and Pemba People's Party
The Zanzibar and Pemba People's Party was a nationalist, African-dominated political party in Zanzibar. The ZPPP, in a coalition with the Arab-dominated Zanzibar Nationalist Party , governed the island from 1961 to 1964. The party was the smallest of the three political parties on the islands...

 (ZPPP) and this time took 13 seats, while the ASP, despite receiving the most votes, won just 10. Electoral fraud
Electoral fraud
Electoral fraud is illegal interference with the process of an election. Acts of fraud affect vote counts to bring about an election result, whether by increasing the vote share of the favored candidate, depressing the vote share of the rival candidates or both...

 was suspected by the ASP and civil disorder broke out, resulting in 68 deaths. To maintain control, the coalition government banned the more radical opposition parties, filled the civil service with its own appointees, and politicised the police.

In 1963, with the number of parliamentary seats increased to 31, another election saw a repeat of the 1961 votes. Due to the layout of the constituencies the ASP, led by Abeid Amani Karume, won 54 percent of the popular vote but only 13 seats, while the ZNP/ZPPP won the rest and set about strengthening its hold on power. The Umma Party
Umma Party (Zanzibar)
The Umma Party was a political party in Zanzibar. It was founded in 1963 from disaffected socialist Arabs from the ruling Zanzibar Nationalist Party. It was led by Abdulrahman Muhammad Babu and supported the Afro-Shirazi Party during the 1964 Zanzibar Revolution. Babu was made Minister of...

, formed that year by disaffected radical Arab socialist supporters of the ZNP, was banned, and all policemen of African mainland origin were dismissed. This removed a large portion of the only security force on the island, and created an angry group of paramilitary-trained men with knowledge of police buildings, equipment and procedures.

Complete independence from British rule was granted on 10 December 1963, with the ZNP/ZPPP coalition as the governing body. The government requested a defence agreement from the United Kingdom, asking for a battalion of British troops to be stationed on the island for internal security duties, but this was rejected as it was deemed inappropriate for British troops to be involved in the maintenance of law and order so soon after independence. British intelligence reports predicted that a civil disturbance, accompanied by increasing communist activity, was likely in the near future and that the arrival of British troops might cause the situation to deteriorate further. However, many foreign nationals remained on the island, including 130 Britons who were direct employees of the Zanzibar government.

Revolution

Around 3:00 am on 12 January 1964, 600–800 poorly armed, mainly African insurgents, aided by some of the recently dismissed ex-policemen, attacked Unguja's police stations, both of its police armouries, and the radio station. The Arab police replacements had received almost no training and, despite responding with a mobile force, were soon overcome. Arming themselves with hundreds of captured automatic rifles, submachine guns and Bren guns, the insurgents took control of strategic buildings in the capital, Zanzibar Town. Within six hours of the outbreak of hostilities, the town's telegraph
Electrical telegraph
An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded text messages....

 office and main government buildings were under revolutionary control, and the island's only airstrip was captured at 2:18 pm. The Sultan, together with Prime Minister Muhammad Shamte Hamadi
Muhammad Shamte Hamadi
Sheikh Muhammad Shamte Hamadi was Chief Minister of Zanzibar from 5 June 1961 to 24 June 1963 and Prime Minister from 24 June to 12 January 1964.-References:...

 and members of the cabinet, fled the island on the royal yacht
Royal Yacht
A royal yacht is a ship used by a monarch or a royal family. If the monarch is an emperor the proper term is imperial yacht. Most of them are financed by the government of the country of which the monarch is head...

 Seyyid Khalifa, and the Sultan's palace and other property was seized by the revolutionary government. At least 80 people were killed and 200 injured, the majority of whom were Arabs, during the 12 hours of street fighting that followed. Sixty-one American citizens, including 16 men staffing a NASA
NASA
The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...

 satellite tracking station, sought sanctuary in the English Club in Zanzibar Town, and four US journalists were detained by the island's new government.

According to the official Zanzibari history, the revolution was planned and headed by the ASP leader Abeid Amani Karume. However, at the time Karume was on the African mainland as was the leader of the banned Umma Party, Abdulrahman Muhammad Babu. The ASP branch secretary for Pemba, Ugandan-born ex-policeman John Okello
John Okello
John Gideon Okello was an East African revolutionary and the leader of the Zanzibar Revolution in 1964. This revolution overthrew Sultan Jamshid bin Abdullah and led to the proclamation of Zanzibar as a republic.-Youth:...

, had sent Karume to the mainland to ensure his safety. Okello had arrived in Zanzibar from Kenya in 1959, claiming to have been a field marshal
Field Marshal
Field Marshal is a military rank. Traditionally, it is the highest military rank in an army.-Etymology:The origin of the rank of field marshal dates to the early Middle Ages, originally meaning the keeper of the king's horses , from the time of the early Frankish kings.-Usage and hierarchical...

 for the Kenyan rebels during the Mau Mau Uprising
Mau Mau Uprising
The Mau Mau Uprising was a military conflict that took place in Kenya between 1952 and 1960...

, although he actually had no military experience. He maintained that he heard a voice commanding him, as a Christian, to free the Zanzibari people from the Arabs, and it was Okello who led the revolutionaries—mainly unemployed members of the Afro-Shirazi Youth League—on 12 January. One commentator has further speculated that it was probably Okello, with the Youth League, who planned the revolution.

Aftermath

A Revolutionary Council was established by the ASP and Umma parties to act as an interim government, with Karume heading the council as President
President of Zanzibar
The President of Zanzibar is the head of the Revolutionary Government of Zanzibar, which is a semi-autonomous government within Tanzania. The current President is Ali Mohamed Shein. The President is also the chairman of the Revolutionary Council, whose members are appointed by the President, and...

 and Babu serving as the Minister of External Affairs
Foreign minister
A Minister of Foreign Affairs, or foreign minister, is a cabinet minister who helps form the foreign policy of a sovereign state. The foreign minister is often regarded as the most senior ministerial position below that of the head of government . It is often granted to the deputy prime minister in...

. The country was renamed the People's Republic of Zanzibar and Pemba; the new government's first acts were to permanently banish the Sultan and to ban the ZNP and ZPPP. Seeking to distance himself from the volatile Okello, Karume quietly sidelined him from the political scene, although he was allowed to retain his self-bestowed title of field marshal. However, Okello's revolutionaries soon began reprisals against the Arab and Asian population of Unguja, carrying out beatings, rapes, murders, and attacks on property. He claimed in radio speeches to have killed or imprisoned tens of thousands of his "enemies and stooges", but actual estimates of the number of deaths vary greatly, from "hundreds" to 20,000. Some Western newspapers give figures of 2,000–4,000; the higher numbers may be inflated by Okello's own broadcasts and exaggerated reports in some Western and Arab news media. The killing of Arab prisoners and their burial in mass grave
Mass grave
A mass grave is a grave containing multiple number of human corpses, which may or may not be identified prior to burial. There is no strict definition of the minimum number of bodies required to constitute a mass grave, although the United Nations defines a mass grave as a burial site which...

s was documented by an Italian film crew, filming from a helicopter, for Africa Addio
Africa Addio
Africa Addio is a 1966 Italian documentary about the end of the colonial era in Africa. The film was released in a shorter format under the names "Africa Blood and Guts" in the USA and "Farewell Africa" in the UK...

and this sequence of film comprises the only known visual document of the killings. Many Arabs fled to safety in Oman
Oman
Oman , officially called the Sultanate of Oman , is an Arab state in southwest Asia on the southeast coast of the Arabian Peninsula. It is bordered by the United Arab Emirates to the northwest, Saudi Arabia to the west, and Yemen to the southwest. The coast is formed by the Arabian Sea on the...

, although by Okello's order no Europeans were harmed. The post-revolution violence did not spread to Pemba.

By 3 February Zanzibar was finally returning to normality, and Karume had been widely accepted by the people as their president. A police presence was back on the streets, looted shops were re-opening, and unlicensed arms were being surrendered by the civilian populace. The revolutionary government announced that its political prisoners, numbering 500, would be tried by special courts. Okello formed the Freedom Military Force (FMF), a paramilitary unit made up of his own supporters, which patrolled the streets and looted Arab property. The behaviour of Okello's supporters, his violent rhetoric, Ugandan accent, and Christian beliefs were alienating many in the largely moderate Zanzibari and Muslim ASP, and by March many members of his FMF had been disarmed by Karume's supporters and the Umma Party militia. On 11 March Okello was officially stripped of his rank of Field Marshal, and was denied entry when trying to return to Zanzibar from a trip to the mainland. He was deported to Tanganyika and then to Kenya
Kenya
Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...

, before returning destitute to his native Uganda.

In April the government formed the People's Liberation Army (PLA) and completed the disarmament of Okello's remaining FMF militia. On 26 April Karume announced that a union had been negotiated with Tanganyika to form the new country of Tanzania. The merger was seen by contemporary media as a means of preventing communist subversion of Zanzibar; at least one historian states that it may have been an attempt by Karume, a moderate socialist, to limit the influence of the radically left-wing Umma Party. However, many of the Umma Party's socialist policies on health, education and social welfare were adopted by the government.

Foreign reaction

British military forces in Kenya were made aware of the revolution at 4:45 am on 12 January, and following a request from the Sultan were put on 15 minutes' standby to conduct an assault on Zanzibar's airfield. However, the British High Commissioner in Zanzibar, Timothy Crosthwait, reported no instances of British nationals being attacked and advised against intervention. As a result, the British troops in Kenya were reduced to four hours' standby later that evening. Crosthwait decided not to approve an immediate evacuation of British citizens, as many held key government positions and their sudden removal would further disrupt the country's economy and government. To avoid possible bloodshed, the British agreed a timetable with Karume for an organised evacuation.

Within hours of the revolution, the American ambassador had authorised the withdrawal of US citizens on the island, and a US Navy destroyer, the USS Manley
USS Manley (DD-940)
USS Manley , named for Captain John Manley , was a Forrest Sherman class destroyer built by the Bath Iron Works Corporation at Bath in Maine. The keel was laid down on February 10, 1955. Manley was commissioned on February 1, 1957 and sponsored by Mrs. Arleigh A...

, arrived on 13 January. The Manley docked at Zanzibar Town harbour, but the US had not sought the Revolutionary Council's permission for the evacuation, and the ship was met by a group of armed men. Permission was eventually granted on 15 January, but the British considered this confrontation to be the cause of much subsequent ill will against the Western powers in Zanzibar.

Western intelligence agencies believed that the revolution had been organised by communists supplied with weapons by the Warsaw Pact
Warsaw Pact
The Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance , or more commonly referred to as the Warsaw Pact, was a mutual defense treaty subscribed to by eight communist states in Eastern Europe...

 countries. This suspicion was strengthened by the appointment of Babu as Minister for External Affairs and Abdullah Kassim Hanga
Abdullah Kassim Hanga
Abdullah Kassim Hanga was Prime Minister of Zanzibar from 12 January 1964 to 27 April 1964.- References :...

 as Prime Minister, both known leftists with possible communist ties. Britain believed that these two were close associates of Oscar Kambona
Oscar Kambona
Oscar Salathiel Kambona was the first foreign affairs minister of Tanganyika and the second most influential and most popular leader in the country after President Julius Nyerere....

, the Foreign Affairs Minister of Tanganyika, and that former members of the Tanganyika Rifles had been made available to assist with the revolution. Some members of the Umma Party wore Cuban military fatigues
Battledress
Battledress, or fatigues in the general sense, is the type of uniform used as combat uniforms, as opposed to 'display' dress or formal uniform worn at parades and functions. It may be either monochrome or in a camouflage pattern...

 and beards in the style of Fidel Castro
Fidel Castro
Fidel Alejandro Castro Ruz is a Cuban revolutionary and politician, having held the position of Prime Minister of Cuba from 1959 to 1976, and then President from 1976 to 2008. He also served as the First Secretary of the Communist Party of Cuba from the party's foundation in 1961 until 2011...

, which was taken as an indication of Cuban support for the revolution. However this practice was started by those members who had staffed a ZNP branch office in Cuba and it became a common means of dress amongst opposition party members in the months leading up to the revolution. The new Zanzibar government's recognition of the German Democratic Republic
German Democratic Republic
The German Democratic Republic , informally called East Germany by West Germany and other countries, was a socialist state established in 1949 in the Soviet zone of occupied Germany, including East Berlin of the Allied-occupied capital city...

 (the first African government to do so), and of North Korea
North Korea
The Democratic People’s Republic of Korea , , is a country in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The Korean Demilitarized Zone serves as the buffer zone between North Korea and South Korea...

, was further evidence to the Western Powers that Zanzibar was aligning itself closely with the communist bloc. Just six days after the revolution the New York Times stated that Zanzibar was "on the verge of becoming the Cuba of Africa", but on 26 January denied that there was active communist involvement. Zanzibar continued to receive support from communist countries and by February was known to be receiving advisers from USSR, East Germany and China. Cuba also lent its support with Che Guevara
Che Guevara
Ernesto "Che" Guevara , commonly known as el Che or simply Che, was an Argentine Marxist revolutionary, physician, author, intellectual, guerrilla leader, diplomat and military theorist...

 stating on 15 August that "Zanzibar is our friend and we gave them our small bit of assistance, our fraternal assistance, our revolutionary assistance at the moment when it was necessary" but denying there were Cuban troops present during the revolution. At the same time, western influence was diminishing and by July 1964 just one Briton, a dentist, remained in the employ of the Zanzibari government. It has been alleged that Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

i spymaster
Spymaster
A spymaster is a ring leader of a spy ring, run by a secret service.-Historical spymasters:*Dai Li *Francis Walsingham *James Jesus Angleton *Joseph Peters...

 David Kimche
David Kimche
David "Dave" Kimche was a British-born Israeli diplomat, a deputy director of the Mossad and a spymaster. He was also a journalist early in his career...

 was a backer of the revolution with Kimche in Zanzibar on the day of the Revolution.

The deposed Sultan made an unsuccessful appeal to Kenya and Tanganyika for military assistance, although Tanganyika sent 100 paramilitary police officers to Zanzibar to contain rioting. Other than the Tanganyika Rifles (formerly the colonial King's African Rifles
King's African Rifles
The King's African Rifles was a multi-battalion British colonial regiment raised from the various British possessions in East Africa from 1902 until independence in the 1960s. It performed both military and internal security functions within the East African colonies as well as external service as...

), the police were the only armed force in Tanganyika, and on 20 January the police absence led the entire Rifles regiment to mutiny. Dissatisfied with their low pay rates and with the slow progress of the replacement of their British officers with Africans, the soldiers' mutiny sparked similar uprisings in both Uganda and Kenya. However, order on the African mainland was rapidly restored without serious incident by the British Army and Royal Marines.

The possible emergence of an African communist state remained a source of disquiet in the West. In February, the British Defence and Overseas Policy Committee said that, while British commercial interests in Zanzibar were "minute" and the revolution by itself was "not important", the possibility of intervention must be maintained. The committee was concerned that Zanzibar could become a centre for the promotion of communism in Africa, much like Cuba had in the Americas. Britain, most of the Commonwealth
Commonwealth of Nations
The Commonwealth of Nations, normally referred to as the Commonwealth and formerly known as the British Commonwealth, is an intergovernmental organisation of fifty-four independent member states...

, and the USA withheld recognition of the new regime until 23 February, by which time it had already been recognised by much of the communist bloc. In Crosthwait's opinion, this contributed to Zanzibar aligning itself with the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

; Crosthwait and his staff were expelled from the country on 20 February and were only allowed to return once recognition had been agreed.

British military response

Following the evacuation of its citizens on 13 January, the US government stated that it recognised that Zanzibar lay within Britain's sphere of influence
Sphere of influence
In the field of international relations, a sphere of influence is a spatial region or conceptual division over which a state or organization has significant cultural, economic, military or political influence....

, and would not intervene. The US did, however, urge that Britain cooperate with other East African countries to restore order. The first British military vessel on the scene was the survey ship HMS Owen
HMS Owen (K640)
HMS Owen a Bay-class frigate of the British Royal Navy. She was named for the explorer and naval officer William Fitzwilliam Owen. She was originally laid down as the Loch-class vessel Loch Muick, and re-ordered as Thurso Bay while building...

, which was diverted from the Kenyan coast and arrived on the evening of 12 January. Owen was joined on 15 January by the 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"...

 Rhyl
HMS Rhyl (F129)
HMS Rhyl was a Rothesay or Type 12I class anti-submarine frigate of the British Royal Navy....

 and the Royal Fleet Auxiliary
Royal Fleet Auxiliary
The Royal Fleet Auxiliary is a civilian-manned fleet owned by the British Ministry of Defence. The RFA enables ships of the United Kingdom Royal Navy to maintain operations around the world. Its primary role is to supply the Royal Navy with fuel, ammunition and supplies, normally by replenishment...

 ship Hebe. While the lightly armed Owen had been able to provide the revolutionaries with an unobtrusive reminder of Britain's military power, the Hebe and Rhyl were different matters. Due to inaccurate reports that the situation in Zanzibar was deteriorating, the Rhyl was carrying a company of troops of the first battalion of the Staffordshire Regiment from Kenya, the embarkation of which was widely reported in the Kenyan media, and would hinder British negotiations with Zanzibar. The Hebe had just finished removing stores from the naval depot at Mombasa
Mombasa
Mombasa is the second-largest city in Kenya. Lying next to the Indian Ocean, it has a major port and an international airport. The city also serves as the centre of the coastal tourism industry....

 and was loaded with weapons and explosives. Although the Revolutionary Council was unaware of the nature of Hebes cargo, the Royal Navy's refusal to allow a search of the ship created suspicion ashore and rumours circulated that she was an amphibious assault ship.

A partial evacuation of British citizens was completed by 17 January, when the army riots in East Africa prompted
Rhyls diversion to Tanganyika so the troops she was carrying could assist in quelling the mutiny. In replacement, a company of the Gordon Highlanders was loaded aboard Owen so an intervention could still be made if necessary. The aircraft carriers Centaur
HMS Centaur (R06)
HMS Centaur was the first of the four Centaur-class light fleet carriers of the Royal Navy. She was the only ship of her class to retain the original configuration with a straight axial flight deck rather than the angled flight decks of her three sister ships...

 and Victorious
HMS Victorious (R38)
HMS Victorious was the second Illustrious-class aircraft carrier ordered under the 1936 Naval Programme. She was laid down at the Vickers-Armstrong shipyard at Newcastle-Upon-Tyne in 1937 and launched two years later in 1939...

 were also transferred to the region as part of Operation Parthenon
Operation Parthenon
Operation Parthenon was a British plan for military intervention in Zanzibar following the 1964 revolution. The operation was authorised by the British Commanders Committee East Africa on 30 January. The main objectives were to restore law and order in Zanzibar and to prevent the radical...

. Although never enacted, Parthenon was intended as a precaution should Okello or the Umma party radicals attempt to seize power from the more moderate ASP. In addition to the two carriers, the plan involved three destroyers, Owen, 13 helicopters, 21 transport and reconnaissance aircraft, the second battalion of the Scots Guards
Scots Guards
The Scots Guards is a regiment of the Guards Division of the British Army, whose origins lie in the personal bodyguard of King Charles I of England and Scotland...

, 45 Commando
45 Commando
45 Commando Royal Marines is a battalion sized unit of the British Royal Marines and subordinate unit within 3 Commando Brigade Royal Marines, the principal Commando formation, under the Operational Command of Commander in Chief Fleet....

 of the Royal Marines and one company of the second battalion of the Parachute Regiment. The island of Unguja, and its airport, were to be seized by parachute and helicopter assault, followed up by the occupation of Pemba. Parthenon would have been the largest British airborne and amphibious operation since the Suez Crisis
Suez Crisis
The Suez Crisis, also referred to as the Tripartite Aggression, Suez War was an offensive war fought by France, the United Kingdom, and Israel against Egypt beginning on 29 October 1956. Less than a day after Israel invaded Egypt, Britain and France issued a joint ultimatum to Egypt and Israel,...

.

Following the revelation that the revolutionaries may have received communist bloc training, Operation Parthenon was replaced by Operation Boris
Operation Boris
Operation Boris was a British plan for military intervention in Zanzibar following the 1964 revolution. It was devised around 20 February to be used of the radical left-wing Umma Party attempted to take power. It replaced the earlier sea-based Operation Parthenon with a parachute assault launched...

. This called for a parachute assault on Unguja from Kenya, but was later abandoned due to poor security in Kenya and the Kenyan government's opposition to the use of its airfields. Instead Operation Finery
Operation Finery
Operation Finery was a British plan for military intervention in Zanzibar following the 1964 revolution. It was a replacement for the earlier operations Parthenon and Boris, amphibious and airborne assaults. Finery circumvented the reliance of the earlier plans on bases in Kenya, where government...

 was drawn up, which would involve a helicopter assault by Royal Marines from HMS Bulwark
HMS Bulwark (R08)
The sixth HMS Bulwark of the Royal Navy was a 22,000 tonne Centaur-class light fleet aircraft carrier.-Construction:Bulwark was laid down by the Harland & Wolff shipyard in Belfast on 10 May 1945...

, a commando carrier then stationed in the Middle East. As Bulwark was outside the region, Finery's launch would require 14 days' notice, so in the event that a more immediate response was necessary, suitable forces were placed on 24 hours' notice to launch a smaller scale operation to protect British citizens.

With the merger of Tanganyika and Zanzibar on 23 April, there were concerns that the Umma Party would stage a coup; Operation Shed
Operation Shed
Operation Shed was a British plan for military intervention in Zanzibar following the 1964 Zanzibar revolution. It was one of a series of operations devised by the British to be implemented in the case of an attempt to seize power from President Abeid Karume by the radical left-wing Umma Party...

 was designed to provide for intervention should this happen. Shed would have required a battalion of troops, with scout cars, to be airlifted to the island to seize the airfield and protect Karume's government. However, the danger of a revolt over unification soon passed, and on 29 April the troops earmarked for Shed were reduced to 24 hours' notice. Operation Finery was cancelled the same day. Concern over a possible coup remained though, and around 23 September Shed was replaced with Plan Giralda
Plan Giralda
Plan Giralda was a British plan for military intervention in Zanzibar following the 1964 revolution. Giralda was intended to be launched if the radical left-wing Umma Party attempted to launch a coup against the government of President Julius Nyerere's newly formed Tanzania...

, involving the use of British troops from Aden
Aden (colony)
The Colony of Aden or Aden Colony was a British Crown colony from 1937 to 1963, and consisted of the port city of Aden and its immediate surroundings The Colony of Aden or Aden Colony was a British Crown colony from 1937 to 1963, and consisted of the port city of Aden and its immediate...

 and the Far East, to be enacted if the Umma Party attempted to overthrow President Julius Nyerere
Julius Nyerere
Julius Kambarage Nyerere was a Tanzanian politician who served as the first President of Tanzania and previously Tanganyika, from the country's founding in 1961 until his retirement in 1985....

 of Tanzania. An infantry battalion, tactical headquarters unit and elements of the Royal Marines would have been shipped to Zanzibar to launch an amphibious assault, supported by follow-on troops from British bases in Kenya or Aden to maintain law and order. Giralda was scrapped in December, ending British plans for military intervention in the country.

Legacy

One of the main impacts of the revolution in Zanzibar was to break the power of the Arab/Asian ruling class, who had held it for around 200 years. Despite the merger with Tanganyika, Zanzibar retained a Revolutionary Council
Revolutionary Council (Zanzibar)
The Revolutionary Council along with the House of Representatives make up the semi-autonomous Revolutionary Government of Zanzibar. The Council's principal role is to advise the President of Zanzibar, who is the Head of government....

 and House of Representatives
House of Representatives of Zanzibar
The unicameral House of Representatives of Zanzibar is the semi-autonomous island's legislative body.The current House of Representatives, formed following elections held on 30 October 2005, has a total of 81 members. 50 members are directly elected in single-member constituencies using the simple...

 which was, until 1992, run on a one party system and has power over domestic matters. The domestic government is led by the President of Zanzibar, Karume being the first holder of this office. This government used the success of the revolution to implement reforms across the island. Many of these involved the removal of power from Arabs. The Zanzibar civil service, for example, became an almost entirely African organisation, and land was redistributed from Arabs to Africans. The revolutionary government also instituted social reforms such as free healthcare and opening up the education system to African students (who had occupied only 12% of secondary school places before the revolution).

The government sought help from the Soviet Union, the German Democratic Republic (GDR), and P. R. China for funding for several projects and military advice. The failure of several GDR-led projects including the New Zanzibar Project, a 1968 urban redevelopment scheme
Urban renewal
Urban renewal is a program of land redevelopment in areas of moderate to high density urban land use. Renewal has had both successes and failures. Its modern incarnation began in the late 19th century in developed nations and experienced an intense phase in the late 1940s – under the rubric of...

 to provide new apartments for all Zanzibaris, led to Zanzibar focussing on Chinese aid. The post-revolution Zanzibar government was accused of draconian controls on personal freedoms and travel and exercised nepotism
Nepotism
Nepotism is favoritism granted to relatives regardless of merit. The word nepotism is from the Latin word nepos, nepotis , from which modern Romanian nepot and Italian nipote, "nephew" or "grandchild" are also descended....

 in appointments to political and industrial offices, the new Tanzanian government being powerless to intervene. Dissatisfaction with the government came to a head with the assassination of Karume on 7 April 1972, which was followed by weeks of fighting between pro and anti-government forces. A multi-party system
Multi-party system
A multi-party system is a system in which multiple political parties have the capacity to gain control of government separately or in coalition, e.g.The Conservative-Liberal Democrat coalition in the United Kingdom formed in 2010. The effective number of parties in a multi-party system is normally...

 was eventually established in 1992, but Zanzibar remains dogged by allegations of corruption and vote-rigging.

The revolution itself remains an event of interest for Zanzibaris and academics. Historians have analysed the revolution as having a racial and a social basis with some stating that the African revolutionaries represent the proletariat
Proletariat
The proletariat is a term used to identify a lower social class, usually the working class; a member of such a class is proletarian...

rebelling against the ruling and trading classes, represented by the Arabs and South Asians. Others discount this theory and present it as a racial revolution that was exacerbated by economic disparity between races.

Within Zanzibar, the revolution is a key cultural event, marked by the release of 545 prisoners on its tenth anniversary and by a military parade on its 40th. Zanzibar Revolution Day has been designated as a public holiday by the government of Tanzania; it is celebrated on 12 January each year.
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