Infantry Branch (United States Army)

Infantry Branch (United States Army)
Unit name	Infantry Branch (United States Army)
Caption	Infantry branch insignia and crossed musket device
Dates	1775–present
Country	United States
Branch	United States Army
Type	Infantry
Role	Close combat, tactical maneuver, reconnaissance
Size	Regiments, brigades, divisions
Garrison	Fort Moore, Georgia; Fort Benning; other posts
Motto	Follow Me
Colors	Light blue
Notable commanders	George Washington, Winfield Scott, Douglas MacArthur, Omar Bradley, Norman Schwarzkopf Jr.

Infantry Branch (United States Army) The Infantry Branch is the principal close-combat force component of the United States Army, responsible for engaging and defeating enemy ground forces through maneuver, fire, and shock action. Originating in the Continental Army, the branch has participated in major conflicts including the American Revolutionary War, War of 1812, Mexican–American War, Civil War, Spanish–American War, World War I, World War II, Korean War, Vietnam War, Gulf War, Iraq War, and the War in Afghanistan. The branch provides the core maneuver elements for divisions, corps, and joint task forces and works alongside United States Army Special Forces, United States Marine Corps, United States Navy, and United States Air Force elements.

History

The Infantry traces institutional origins to the Continental Army formations raised by the Second Continental Congress in 1775 and to colonial militia traditions from the French and Indian War. Early leaders such as George Washington and Anthony Wayne shaped doctrine during the Revolutionary period. In the 19th century, figures like Winfield Scott and campaigns such as the Mexican–American War and the American Civil War drove professionalization and tactical evolution. The branch adapted industrial-age firepower during World War I under leaders like John J. Pershing and refined combined-arms doctrine with lessons from the Blitzkrieg and Battle of Britain influences prior to World War II. Postwar conflicts including the Korean War and Vietnam War prompted changes in organization, counterinsurgency techniques, and small-unit leadership emphasized by commanders such as Omar Bradley and William Westmoreland. Late 20th- and early 21st-century operations in Operation Desert Storm, Operation Iraqi Freedom, and Operation Enduring Freedom further transformed infantry tactics, integration with armor and aviation, and incorporation of networked systems championed by strategists influenced by John Boyd and H. R. McMaster.

Organization and structure

Infantry formations are organized hierarchically into squads, platoons, companies, battalions, brigades, and divisions. A typical infantry squad is led by a sergeant and fits within the doctrinal framework used by the United States Army Forces Command, III Armored Corps, 1st Infantry Division, 82nd Airborne Division, 101st Airborne Division, and light divisions such as the 10th Mountain Division. Specialized infantry units include Rangers (under the 75th Ranger Regiment), air assault units within the 101st Airborne Division, airborne units in the 82nd Airborne Division, and light infantry brigades attached to expeditionary corps. The infantry branch interfaces with Armor Branch, Field Artillery Branch, Aviation Branch, and Engineer Branch elements to form brigade combat teams and larger combined arms formations.

Roles and missions

Infantry missions encompass offensive, defensive, stability, and civil support operations. Roles include close assault, deliberate maneuver, reconnaissance-in-force, urban combat, airfield seizure, and direct action in coordination with Joint Special Operations Command and conventional maneuver forces. Infantry units conduct dismounted patrolling, mounted operations in armored platforms such as Stryker, Bradley Fighting Vehicle, and combined-arms raids supported by AH-64 Apache and fixed-wing close air support. In stabilization and humanitarian responses, infantry forces have worked with agencies like the United Nations, Department of State, and United States Agency for International Development.

Training and qualifications

Infantry Soldiers attend basic training at Fort Moore (formerly Fort Benning) and complete One Station Unit Training with initial infantry MOS courses such as 11B and 11C, and advanced schools including Ranger School, Airborne School, Air Assault School, and the Sniper Course. Noncommissioned officers refine leadership at the United States Army Sergeants Major Academy and Advanced Leader Course, while officers receive instruction at United States Military Academy, Officer Candidate School, or Reserve Officers' Training Corps programs and complete the Infantry Officer Basic Leader Course and Infantry Captains Career Course. Training integrates live-fire exercises at ranges such as NTC Fort Irwin and JRTC Fort Polk, and multinational exercises like Bright Star and NATO maneuvers.

Equipment and weapons

Infantry equipment ranges from individual small arms to squad-level support and vehicular platforms. Standard small arms include the M4 carbine, M16 rifle, M249 SAW, M240 machine gun, M203 grenade launcher, and precision systems such as the M110 Semi-Automatic Sniper System. Anti-armor and indirect fires employ systems like the Javelin, AT4, and mortars (60 mm, 81 mm, 120 mm). Mounted forces use vehicles including the Stryker, M2 Bradley, and armored personnel carriers integrated with brigade combat team fires from M1 Abrams main battle tanks and Multiple Launch Rocket System batteries. Force protection and situational awareness are enhanced by night-vision devices, unmanned aerial systems like the RQ-11 Raven, and networked communication suites from Project Manager Soldier Systems.

Insignia and traditions

The infantry branch color is light blue and the branch insignia features crossed muskets, symbolizing line infantry heritage. The infantry beret flash, unit colors, and regimental crests carry historical lineage tied to units such as the 1st Infantry Regiment and 3rd Infantry Regiment (The Old Guard). Traditions include the motto "Follow Me", the infantry badge awards—Combat Infantryman Badge and Expert Infantryman Badge—and ceremonies such as Army birthday observances and unit change-of-command rituals influenced by service customs held at posts like Fort Liberty and Fort Bragg.

Notable units and deployments

Notable infantry units include the 1st Infantry Division, 3rd Infantry Division, 82nd Airborne Division, 101st Airborne Division, 10th Mountain Division, 75th Ranger Regiment, and 4th Infantry Division. Historic deployments span the Saratoga Campaign, Gettysburg Campaign, Normandy landings, Battle of the Bulge, Inchon landing, Tet Offensive, Operation Desert Storm, Siege of Fallujah, and contemporary rotations to Kabul and Baghdad under multinational coalitions. Units have received honors such as Presidential Unit Citations and campaign streamers for actions in Iwo Jima, Anzio, Chosin Reservoir, Hürtgen Forest, and modern theaters.

Category:United States Army branches