1st and 29th Infantry Divisions (United States)

1st and 29th Infantry Divisions (United States)
Unit name	1st and 29th Infantry Divisions (United States)
Caption	Shoulder sleeve insignia for the 1st and 29th Infantry Divisions
Dates	1917–present (lineage elements)
Country	United States
Branch	United States Army
Type	Infantry
Role	Ground combat
Size	Division

1st and 29th Infantry Divisions (United States) are two historic infantry divisions of the United States Army whose personnel, subordinate units, and traditions intersect through shared mobilizations, wartime operations, and National Guard affiliations. Both divisions trace roots to state militia formations, fought in major 20th-century campaigns including the Meuse-Argonne Offensive and the Normandy landings, and continued through Cold War reorganizations into modern modular formations supporting operations such as Operation Iraqi Freedom and Operation Enduring Freedom.

Overview and Formation

The 1st Infantry Division was formed from Regular Army and National Guard detachments during the entry of the United States into World War I in 1917, organized under leaders drawn from Fort Riley and reshaped by planners at the General Staff of the United States Army. The 29th Infantry Division originated as a National Guard formation combining units from Virginia, Maryland, Delaware, and the District of Columbia; it mobilized under the auspices of the National Guard Bureau and trained at camps such as Camp McClellan and Camp Sevier. Both divisions were influenced by doctrine from the Chief of Staff of the United States Army and by transatlantic liaison with the British Expeditionary Force and the French Army.

World War I Service

The 1st Infantry Division deployed to France and entered combat in 1917–1918, participating in the Champagne-Marne campaign, the St. Mihiel Offensive, and the culminating Meuse-Argonne Offensive alongside formations of the American Expeditionary Forces commanded by General John J. Pershing. Its regiments faced German forces during trench warfare, coordinating with artillery elements from the French Fourth Army and logistical support routed through Le Havre. The 29th Infantry Division arrived later in the American buildup and was committed to sectors of the Western Front where it served in concert with the British Army and the Belgian Army in rear-area and line-holding operations, adapting to combined-arms procedures and gas-defense measures promulgated by the United States Chemical Warfare Service.

World War II Campaigns

In World War II the 1st Infantry Division was among the assault formations during the Operation Torch landings in North Africa and later fought in the Sicily campaign before joining the Normandy landings at Omaha Beach. The division advanced through the French Liberation of Paris corridor, contested the Battle of the Bulge sector, and pushed into the Rhineland in coordination with units of the British XXX Corps and the Canadian Army. The 29th Infantry Division is noted for its role on D-Day assaulting Omaha Beach alongside elements of the 2nd Ranger Battalion; afterwards it fought through the Bocage, participated in the Battle of Saint-Lô, and later moved into the Siegfried Line operations and the campaign across the Rhine River. Both divisions coordinated logistics with the European Theater of Operations, United States Army headquarters and employed combined-arms integration with United States Army Air Forces close air support and Corps artillery.

Postwar Reorganizations and Cold War Era

After 1945 both divisions underwent demobilization and reconstitution: the 1st Infantry Division reestablished elements in the Regular Army and at posts such as Fort Riley and Fort Benning, while the 29th returned to National Guard status with headquarters in Virginia. During the Korean War and later the Vietnam era, the 1st deployed brigades and battalions to theaters and maintained readiness under reorganizations such as the Pentomic and later ROAD structures. The 29th adapted to National Guard force structure revisions, participated in Operation Desert Storm mobilization planning, and was aligned under United States Army Europe and United States Northern Command contingency plans. Both divisions adopted mechanized, air assault, or light infantry roles at times and integrated equipment like the M1 Abrams, M2 Bradley, and UH-60 Black Hawk according to force modernization driven by the Department of the Army.

Modern Activities and Deployments

In the 21st century the 1st Infantry Division deployed brigade combat teams to Operation Iraqi Freedom and Operation Enduring Freedom, conducting counterinsurgency operations, partnered training with the Iraqi Army and the Afghan National Army, and participating in NATO exercises such as Operation Atlantic Resolve. The 29th Infantry Division's National Guard brigades mobilized for homeland security missions, disaster response alongside the Federal Emergency Management Agency, and overseas rotations supporting stabilization tasks in Iraq and Afghanistan. Both divisions have contributed to multinational exercises with partners including United Kingdom Armed Forces, Poland Armed Forces, and Romania Armed Forces, and maintain readiness for European deterrence and crisis response under NATO frameworks.

Unit Lineage, Honors, and Insignia

The 1st Infantry Division's lineage includes campaign credits for Aisne-Marne, St. Mihiel, Meuse-Argonne, Naples-Foggia, Normandy, and the Rhineland; decorations include the Distinguished Unit Citation and foreign honors awarded by allied governments such as France and Belgium. The 29th Infantry Division's lineage lists World War I and World War II campaigns including St. Lo and Northern France, with unit citations and state-level awards from Virginia and Maryland. Insignia associated with the 1st features the "Big Red One" shoulder sleeve emblem, while the 29th uses the blue and gray circular device symbolizing state affiliations and Civil War heritage tied to figures and events like Robert E. Lee and Ulysses S. Grant in iconography. Current heraldry, distinctive unit insignia, and campaign streamers are maintained by the United States Army Center of Military History and displayed during ceremonies at installations such as Fort Riley and state armories.

Category:Infantry divisions of the United States Army Category:United States Army divisions in World War II Category:Military units and formations of the National Guard of the United States