Infantry in the American Civil War
Encyclopedia
The Infantry in the American Civil War comprised foot-soldiers
Infantry
Infantrymen are soldiers who are specifically trained for the role of fighting on foot to engage the enemy face to face and have historically borne the brunt of the casualties of combat in wars. As the oldest branch of combat arms, they are the backbone of armies...

 who fought primarily with small arms
Small arms
Small arms is a term of art used by armed forces to denote infantry weapons an individual soldier may carry. The description is usually limited to revolvers, pistols, submachine guns, carbines, assault rifles, battle rifles, multiple barrel firearms, sniper rifles, squad automatic weapons, light...

, and they carried the brunt of the fighting on battlefields across the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. As the Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

 progressed, battlefield tactics soon changed in response to the new form of warfare
Industrial warfare
Industrial warfare is a period in the history of warfare ranging roughly from the early nineteenth century and the start of the Industrial Revolution to the beginning of the Atomic Age, which saw the rise of nation-states, capable of creating and equipping large armies and navies through the...

 being waged in America. The use of military balloons
Union Army Balloon Corps
The Union Army Balloon Corps was a branch of the Union Army during the American Civil War, established by presidential appointee Thaddeus S. C. Lowe...

, rifled musket
Rifled musket
The term rifled musket or rifle musket refers to a specific type of weapon made in the mid-19th century. Originally the term referred only to muskets that had been produced as a smoothbore weapon and later had their barrels rifled...

s, repeating rifles
Spencer repeating rifle
The Spencer repeating rifle was a manually operated lever-action, repeating rifle fed from a tube magazine with cartridges. It was adopted by the Union Army, especially by the cavalry, during the American Civil War, but did not replace the standard issue muzzle-loading rifled muskets in use at the...

, and fortified entrenchment
Entrenchment
Entrenchment or Entrenched may refer to:* Military trenches with relation to Trench warfare, especially that of World War I *Entrenchment as a feature of a Constitution, making it more difficult to amend* Entrenched clause within a constitution...

s contributed to the death of many men. General
General
A general officer is an officer of high military rank, usually in the army, and in some nations, the air force. The term is widely used by many nations of the world, and when a country uses a different term, there is an equivalent title given....

s and other officers
Officer (armed forces)
An officer is a member of an armed force or uniformed service who holds a position of authority. Commissioned officers derive authority directly from a sovereign power and, as such, hold a commission charging them with the duties and responsibilities of a specific office or position...

, many professionally trained in tactics from the Napoleonic Wars
Napoleonic Wars
The Napoleonic Wars were a series of wars declared against Napoleon's French Empire by opposing coalitions that ran from 1803 to 1815. As a continuation of the wars sparked by the French Revolution of 1789, they revolutionised European armies and played out on an unprecedented scale, mainly due to...

, were often slow to develop changes in tactics in response.

Outbreak of war

At the start of the Civil War, the entire United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 consisted of some 16,000 men of all branches, with infantry representing the vast majority of this total. Some of these infantrymen had seen considerable combat experience in the Mexican-American War, as well as in the West
Western United States
.The Western United States, commonly referred to as the American West or simply "the West," traditionally refers to the region comprising the westernmost states of the United States. Because the U.S. expanded westward after its founding, the meaning of the West has evolved over time...

 in various encounters, including the Utah War
Utah War
The Utah War, also known as the Utah Expedition, Buchanan's Blunder, the Mormon War, or the Mormon Rebellion was an armed confrontation between LDS settlers in the Utah Territory and the armed forces of the United States government. The confrontation lasted from May 1857 until July 1858...

 and several campaigns against Indians
Native Americans in the United States
Native Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...

. However, the majority spent their time on garrison or fatigue duty. In general, the majority of the infantry officers were graduates of military schools such as the United States Military Academy
United States Military Academy
The United States Military Academy at West Point is a four-year coeducational federal service academy located at West Point, New York. The academy sits on scenic high ground overlooking the Hudson River, north of New York City...

.

In some cases, individual states, such as New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

, had previously organized formal militia
Militia
The term militia is commonly used today to refer to a military force composed of ordinary citizens to provide defense, emergency law enforcement, or paramilitary service, in times of emergency without being paid a regular salary or committed to a fixed term of service. It is a polyseme with...

 infantry regiments, originally to fight Indians in many cases, but by 1861, they existed mostly for social camaraderie and parades. These organizations were more prevalent in the South
Southern United States
The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

, where hundreds of small local militia companies existed.

With the secession
Secession
Secession is the act of withdrawing from an organization, union, or especially a political entity. Threats of secession also can be a strategy for achieving more limited goals.-Secession theory:...

 of eleven Southern states by early 1861 following the election of President
President of the United States
The President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces....

 Abraham Lincoln
Abraham Lincoln
Abraham Lincoln was the 16th President of the United States, serving from March 1861 until his assassination in April 1865. He successfully led his country through a great constitutional, military and moral crisis – the American Civil War – preserving the Union, while ending slavery, and...

, tens of thousands of Southern men flocked to hastily organized companies, which were soon formed into regiment
Regiment
A regiment is a major tactical military unit, composed of variable numbers of batteries, squadrons or battalions, commanded by a colonel or lieutenant colonel...

s, brigade
Brigade
A brigade is a major tactical military formation that is typically composed of two to five battalions, plus supporting elements depending on the era and nationality of a given army and could be perceived as an enlarged/reinforced regiment...

s, and small armies, forming the genesis of the Confederate States Army
Confederate States Army
The Confederate States Army was the army of the Confederate States of America while the Confederacy existed during the American Civil War. On February 8, 1861, delegates from the seven Deep South states which had already declared their secession from the United States of America adopted the...

. Lincoln responded by issuing a call for 75,000 volunteers, and later even more, to put down the rebellion, and the Northern states
Northern United States
Northern United States, also sometimes the North, may refer to:* A particular grouping of states or regions of the United States of America. The United States Census Bureau divides some of the northernmost United States into the Midwest Region and the Northeast Region...

 responded. The resulting forces came to be known as the Volunteer Army (even though they were paid), versus the Regular Army
Regular Army
The Regular Army of the United States was and is the successor to the Continental Army as the country's permanent, professional military establishment. Even in modern times the professional core of the United States Army continues to be called the Regular Army...

. Infantry comprised over 80% of the manpower in these forces.

Organization

The typical infantry regiment of the early Civil War consisted of 10 companies
Company (military unit)
A company is a military unit, typically consisting of 80–225 soldiers and usually commanded by a Captain, Major or Commandant. Most companies are formed of three to five platoons although the exact number may vary by country, unit type, and structure...

 (each with exactly 100 men, according to Hardee's
William J. Hardee
William Joseph Hardee was a career U.S. Army officer, serving during the Second Seminole War and fighting in the Mexican-American War...

 1855 manual, and led by a captain, with associated lieutenant
Lieutenant
A lieutenant is a junior commissioned officer in many nations' armed forces. Typically, the rank of lieutenant in naval usage, while still a junior officer rank, is senior to the army rank...

s). Field officers normally included a colonel
Colonel (United States)
In the United States Army, Air Force, and Marine Corps, colonel is a senior field grade military officer rank just above the rank of lieutenant colonel and just below the rank of brigadier general...

 (commanding), lieutenant colonel
Lieutenant Colonel (United States)
In the United States Army, United States Air Force, and United States Marine Corps, a lieutenant colonel is a field grade military officer rank just above the rank of major and just below the rank of colonel. It is equivalent to the naval rank of commander in the other uniformed services.The pay...

, and at least one major
Major (United States)
In the United States Army, Air Force, and Marine Corps, major is a field grade military officer rank just above the rank of captain and just below the rank of lieutenant colonel...

. With attrition from disease, battle casualties, and transfers, by the mid-war, most regiments averaged 300-400 men. Volunteer regiments were paid by the individual states, and officers at first were normally elected by popular vote, or were appointed by the state governors (particularly the colonels, who were often the men who had raised and organized the regiment). As the war progressed, the War Department
United States Department of War
The United States Department of War, also called the War Department , was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army...

 and superior officers began selecting regimental leaders, and the regimental officers normally selected the NCOs (non-commissioned officers) based on performance and merit, although the individual states retained considerable influence in the selection of the regimental officers.

Often, and always, according to Hardee's 1855 manual, large regiments were broken into two or more battalion
Battalion
A battalion is a military unit of around 300–1,200 soldiers usually consisting of between two and seven companies and typically commanded by either a Lieutenant Colonel or a Colonel...

s, with the lieutenant colonel and major(s) in charge of each battalion. The regiment may have also been divided into two wings, the left and right, for instructional purposes, only. The regimental commander exercised overall tactical control over these officers and usually relied on couriers and staff to deliver and receive messages and orders. Normally positioned in the center of the regiment in battle formation was the color guard
Color guard
In the military of the United States and other militaries, the color guard carries the National Color and other flags appropriate to its position in the chain of command. Typically these include a unit flag and a departmental flag...

, typically five to eight men assigned to carry and protect the regimental and/or national colors, led by a color sergeant. Most Union
Union Army
The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 regiments carried both banners; the typical Confederate regiment simply had a national standard.

Individual regiments (usually three to five, although the number varied) were organized and grouped into a larger body (a brigade) which soon became the main structure for battlefield maneuvers. Generally, the brigade was commanded by a brigadier general or senior colonel, when merit was clearly evident in that colonel and a Brigadier was not available. Two to four brigades typically comprised a division
Division (military)
A division is a large military unit or formation usually consisting of between 10,000 and 20,000 soldiers. In most armies, a division is composed of several regiments or brigades, and in turn several divisions typically make up a corps...

, which in theory was commanded by a major general, but theory was oftentimes not put into practical application, especially when an officer exhibited exceptional merit or the division was smaller and trusted to a more junior officer. Several divisions would constitute a corps
Corps
A corps is either a large formation, or an administrative grouping of troops within an armed force with a common function such as Artillery or Signals representing an arm of service...

, and multiple corps together made up an army
Army
An army An army An army (from Latin arma "arms, weapons" via Old French armée, "armed" (feminine), in the broadest sense, is the land-based military of a nation or state. It may also include other branches of the military such as the air force via means of aviation corps...

, often commanded by a lieutenant general or full general in the Confederate forces, and by a major general
Major General
Major general or major-general is a military rank used in many countries. It is derived from the older rank of sergeant major general. A major general is a high-ranking officer, normally subordinate to the rank of lieutenant general and senior to the ranks of brigadier and brigadier general...

 in the Union forces.

Below is charted the average make-up of the infantry for both sides.

Confederate States Army

unit type low high average most frequent
corps per army 1 4 2.74 2
divisions per corps 2 7 3.10 3
brigades per division 2 7 3.62 4
regiments per brigade 2 20 4.71 5

Union Army

unit type low high average most frequent
corps per army 1 8 3.71 3
divisions per corps 2 6 2.91 3
brigades per division 2 5 2.80 3
regiments per brigade 2 12 4.73 4

Tactics

Commands were typically issued via drum or bugle call
Bugle call
A bugle call is a short tune, originating as a military signal announcing scheduled and certain non-scheduled events on a military installation, battlefield, or ship. Historically, bugles, drums, and other loud musical instruments were used for clear communication in the noise and confusion of a...

, although the drum was used primarily among the infantry, and the bugle among the cavalry, as playing drum on horseback was found to be rather difficult, and soldiers were drilled in infantry tactics, usually based upon a manual written before the war by West Point professor William J. Hardee
William J. Hardee
William Joseph Hardee was a career U.S. Army officer, serving during the Second Seminole War and fighting in the Mexican-American War...

 (Rifle and Light Infantry Tactics: for the Instruction, Exercise and Manoeuver of Riflemen and Light Infantry, published in 1855). Another treatise commonly used was from Winfield Scott
Winfield Scott
Winfield Scott was a United States Army general, and unsuccessful presidential candidate of the Whig Party in 1852....

, entitled Infantry Tactics, or Rules for Manoeuvers of the United States Infantry. Although published in 1861, it was heavily based upon his Mexican-American War tactics. Other popular instruction manuals were issued early in the Civil War, including McClellan's Bayonet Drill (1862) and Casey's Infantry Tactics (1862).

Many generals, particularly early in the war, preferred to use Napoleonic tactics, despite the increased killing power of period weaponry. They marched their men out in tightly closed formations, often with soldiers elbow-to-elbow in double-rank battle lines, usually in brigade (by mid-war numbering about 2,500-3,000 infantrymen) or division (by mid-war numbering about 6,000-10,000 infantrymen) strength. This large mass presented an easy target for defenders, who could easily fire several volleys before his enemy would be close enough for hand-to-hand combat. The idea was to close on the enemy's position with this mass of soldiers and charge them with the bayonet
Bayonet
A bayonet is a knife, dagger, sword, or spike-shaped weapon designed to fit in, on, over or underneath the muzzle of a rifle, musket or similar weapon, effectively turning the gun into a spear...

, convincing the enemy to leave their position or be killed. At times, these soon-to-be outdated tactics contributed to high casualty lists.

Of particular tactical importance was the usage of skirmisher
Skirmisher
Skirmishers are infantry or cavalry soldiers stationed ahead or alongside a larger body of friendly troops. They are usually placed in a skirmish line to harass the enemy.-Pre-modern:...

s, usually small bodies of advanced troops which were often spaced several yards apart, and more specifically, five paces per man, according to Hardee's manual. They screened a defensive line from oncoming enemy soldiers, harassed attackers, probed enemy strength in preparation for an attack, and screened the assaulting columns. However, the skirmish formation was forfeited in most cases, for a line of battle was of preference. Skirmish formation would be used to take up large distances of an open front, which rarely occurred at the larger scale battles. Nevertheless, it was drilled into the recruits, should the opportunity to take skirmish formation arise in a combat scenario.

Assaults were carried out in several manners, including single or double rank battle lines with individual regiments side-by-side in a line of battle, assault waves (with multiple regiments or brigades in successive waves spaced out loosely one behind the other), brigade columns (all regiments of a brigade in line one behind the other in close formation), and other formations.

Weapons and equipment

Trained in the era of short-range smoothbore
Smoothbore
A smoothbore weapon is one which has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars.-History of firearms and rifling:...

 musket
Musket
A musket is a muzzle-loaded, smooth bore long gun, fired from the shoulder. Muskets were designed for use by infantry. A soldier armed with a musket had the designation musketman or musketeer....

s, such as the Springfield Model 1842, which was issued to many units immediately prior to the war, many generals often did not fully appreciate or understand the importance and power of the new weapons introduced during the war, such as the 1861 Springfield musket
Springfield Model 1861
The Springfield Model 1861 was a Minié-type rifled musket shoulder arm used by the United States Army and Marine Corps during the American Civil War. Commonly referred to as the "Springfield" , it was the most widely used U.S...

 and comparable rifles which had longer range and were more powerful than the weapons used by the antebellum armies. Its barrel contained several rifle
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...

d grooves that provided increased accuracy, and fired a .58 caliber
Caliber
In guns including firearms, caliber or calibre is the approximate internal diameter of the barrel in relation to the diameter of the projectile used in it....

 Minié ball
Minié ball
The Minié ball is a type of muzzle-loading spin-stabilising rifle bullet named after its co-developer, Claude-Étienne Minié, inventor of the Minié rifle...

 (a small conical-shaped ball). This rifle had a deadly effect up to 600 yards and was capable of seriously wounding a man beyond 1,000 yards, unlike the previous muskets used during the American Revolutionary War
American Revolutionary War
The American Revolutionary War , the American War of Independence, or simply the Revolutionary War, began as a war between the Kingdom of Great Britain and thirteen British colonies in North America, and ended in a global war between several European great powers.The war was the result of the...

 and Napoleonic Wars, most of which had an effective range of only 100 yards.

Even smoothbore muskets underwent improvements: soldiers developed the technique of "buck and ball," loading the muskets with a combination of small pellets and a single round ball, effectively making their fire scattergun-like in effect. Other infantrymen went into combat armed with shotgun
Shotgun
A shotgun is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug...

s, pistol
Pistol
When distinguished as a subset of handguns, a pistol is a handgun with a chamber that is integral with the barrel, as opposed to a revolver, wherein the chamber is separate from the barrel as a revolving cylinder. Typically, pistols have an effective range of about 100 feet.-History:The pistol...

s, knives, and assorted other killing instruments. Very early in the war, a few companies were armed with pikes
Pike (weapon)
A pike is a pole weapon, a very long thrusting spear used extensively by infantry both for attacks on enemy foot soldiers and as a counter-measure against cavalry assaults. Unlike many similar weapons, the pike is not intended to be thrown. Pikes were used regularly in European warfare from the...

. However, by the end of 1862, most infantrymen were armed with rifles, including imports from Great Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

, Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

, and other European countries.

The typical Union soldier carried his musket, percussion cap box, cartridge box, a canteen, a knapsack, and other accouterments, in addition to any personal effects. By contrast, many Southern soldiers carried their possessions in a blanket roll worn around the shoulder and tied at the waist. They might have a wooden canteen, a linen or cotton haversack for food, and a knife or similar sidearm, as well as their musket.

One primary account of the typical infantryman came from James Gall, a representative of the United States Sanitary Commission
United States Sanitary Commission
The United States Sanitary Commission was a private relief agency created by federal legislation on June 18, 1861, to support sick and wounded soldiers of the U.S. Army during the American Civil War. It operated across the North, raised its own funds, and enlisted thousands of volunteers...

, who observed Confederate infantrymen of Maj. Gen. Jubal A. Early in camp in the occupied borough of York, Pennsylvania
York, Pennsylvania
York, known as the White Rose City , is a city located in York County, Pennsylvania, United States which is in the South Central region of the state. The population within the city limits was 43,718 at the 2010 census, which was a 7.0% increase from the 2000 count of 40,862...

, in late June 1863.

See also

  • Cavalry in the American Civil War
    Cavalry in the American Civil War
    Cavalry in the American Civil War was a branch of army service in a process of transition. It suffered from emerging technology threats, difficult logistics, and sometimes misguided or inept commanders...

  • Field Artillery in the American Civil War
    Field Artillery in the American Civil War
    Field artillery in the American Civil War refers to the important artillery weapons, equipment, and practices used by the Artillery branch to support the infantry and cavalry forces in the field. It does not include siege artillery, use of artillery in fixed fortifications, or coastal or naval...

  • List of American Civil War topics
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