Fourth United States Infantry Regiment

Fourth United States Infantry Regiment
Unit name	Fourth United States Infantry Regiment
Dates	1796–present
Country	United States
Allegiance	United States
Branch	United States Army
Type	Infantry
Role	Infantry
Size	Regiment

Fourth United States Infantry Regiment is a regiment of the United States Army with origins in the late 18th century and an active record through major American conflicts. The regiment has served in continental operations, overseas campaigns, and modern deployments, contributing to actions across the War of 1812, the Mexican–American War, the American Civil War, the Spanish–American War, both World Wars, and post‑Cold War operations. Over its history the unit has been reorganized, consolidated, and assigned to various divisions, reflecting broader transformations within the United States Army and the Department of War / Department of Defense.

History

Organized originally in 1796 during the administration of George Washington and under the secretaryship of Henry Knox, the regiment traces antecedents to early Regular Army formations raised for frontier duty and coastal defense. In the early 19th century the regiment conducted operations related to the Quasi-War, frontier skirmishes, and the War of 1812 against Great Britain. During the Mexican conflict the regiment participated in campaigns under commanders such as Winfield Scott and Zachary Taylor. In the Civil War era elements of the regiment were federalized and saw service in theaters where generals like Ulysses S. Grant and Robert E. Lee contested control of strategic lines. The regiment was also engaged in the Indian Wars of the late 19th century, actions in the Philippine–American War following the Spanish–American War, and garrison duties at posts associated with officers such as Winfield Scott Hancock. Reorganizations in the 20th century placed the regiment into divisional structures connected to the 78th Division, the 3rd Infantry Division, and other formation-level commands during World War I and World War II under leaders including John J. Pershing and George S. Patton Jr.. Cold War assignments included postings in Germany and participation in NATO exercises alongside units from United Kingdom Armed Forces, French Army, and West Germany allies. In the 21st century the regiment has deployed in support of operations associated with Operation Enduring Freedom, Operation Iraqi Freedom, and multinational coalitions.

Organization and Structure

Historically organized as a regiment composed of multiple battalions and companies, the Fourth Regiment’s table of organization has mirrored changes embodied in legislation such as the National Defense Act of 1916 and the Goldwater–Nichols Act. The regiment has at times included light infantry, mechanized infantry, and motorized elements aligned with division-level commands like the 1st Infantry Division and brigade combat teams affiliated with III Corps. Subordinate units have borne company designations (A Company, B Company, etc.) and battalion numbers (1st Battalion, 2nd Battalion) that traced lineal connections to earlier companies raised for frontier forts and coastal defenses such as Fort Washington and Fort Snelling. Administrative oversight has shifted among branches within the United States Army Forces Command, United States Army Europe, and United States Army Pacific dependent on deployment. Training relationships have included schools and centers such as United States Army Infantry School at Fort Benning, the National Training Center at Fort Irwin, and the Joint Readiness Training Center at Fort Polk.

Campaigns and Engagements

The regiment’s campaign credits encompass engagements and campaigns enumerated in official lineage including the War of 1812 campaigns, the Mexican–American War battles of Contreras and Churubusco under Winfield Scott, and Civil War actions in theaters associated with the Army of the Potomac and the Army of Northern Virginia where clashes like Antietam and Gettysburg shaped strategic outcomes. Late 19th century operations included participation in the Sioux Wars and expeditionary service in the Philippine Insurrection and Cuba during the Spanish–American War. In World War I the regiment was part of expeditionary contingents integrated with the American Expeditionary Forces under John J. Pershing in campaigns such as the Meuse-Argonne Offensive. World War II actions saw attachment to larger combined-arms formations in European and/or Pacific theaters, participating in amphibious operations, offensive drives, and occupation duties associated with commands led by officers like Omar Bradley and Douglas MacArthur. Post‑1945 engagements include Cold War deterrence activities, peacekeeping missions tied to the United Nations, and combat deployments in the Global War on Terrorism with operations in Iraq and Afghanistan.

Honors and Decorations

The regiment’s honors include campaign streamers and unit decorations awarded by the United States Army and coalition partners. Decorations attributed to the regiment and its subordinate units encompass citations such as the Presidential Unit Citation (United States), Meritorious Unit Commendation (United States), and foreign honors bestowed by allied nations in recognition of battlefield performance alongside United Kingdom, France, and Belgium forces during major conflicts. Campaign streamers record participation in numbered campaigns like those of World War I, World War II, and the Global War on Terrorism campaigns. Individual soldiers within the regiment have received awards including the Medal of Honor, the Distinguished Service Cross, and the Silver Star for actions conducted while assigned to the regiment.

Notable Commanders and Personnel

Officers and enlisted leaders connected with the regiment include figures who later influenced national and military affairs. Prominent names associated at various times include generals and colonels who served in wider roles such as Winfield Scott, Winfield Scott Hancock, John J. Pershing, George S. Patton Jr., and others who rose to prominence in the United States Army general officer corps. Decorated company and battalion commanders have included recipients of the Distinguished Service Medal (United States) and the Silver Star, while enlisted personnel have been recognized with the Medal of Honor for conspicuous gallantry in campaigns ranging from the frontier era through the 21st century.

Lineage and Insignia

The regiment’s official lineage documents consolidations, redesignations, and reorganizations reflecting statutes and Army regulation updates. Insignia associated with the regiment have included distinctive unit insignia and shoulder sleeve insignia authorized by the United States Army Institute of Heraldry and approved under standards implemented since the early 20th century. Symbols and colors used in the unit crest and colors reference theaters of service such as Mexico, the Civil War states, World War battlefields in France and Germany, and campaign emblems tied to Iraq and Afghanistan. Lineage records are maintained in Army historical repositories like the Center of Military History and are reflected on unit guidons, colors, and formal documentation for continuity and honors.

Category:Infantry regiments of the United States Army