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| 4th Division (United States) | |
|---|---|
| Unit name | 4th Division (United States) |
| Dates | 1917–present |
| Country | United States |
| Branch | United States Army |
| Type | Infantry |
| Role | Combined arms |
| Size | Division |
| Command structure | V Corps |
| Garrison | Fort Carson |
| Nickname | Ivy Division |
| Motto | Steadfast and Loyal |
| Battles | World War I; World War II; Vietnam War; Gulf War; Iraq War; War in Afghanistan |
| Notable commanders | John J. Pershing; George S. Patton; Harold R. Bull; Raymond O. Barton |
4th Division (United States) is a division of the United States Army organized as a combined-arms formation with a history spanning World War I, World War II, the Vietnam War, the Gulf War, the Iraq War, and the War in Afghanistan. Nicknamed the "Ivy Division", it has been stationed at locations including Fort Carson, Camp Gordon, Fort Lewis, and deployed across theaters such as the Western Front (World War I), the European Theater of World War II, and operations in the Middle East. The division has featured prominently in campaigns involving formations like the New York National Guard, Third United States Army, and V Corps.
Constituted in 1917 as part of the National Army for service in World War I, the division trained at Camp Greene (North Carolina) and entered combat in the Meuse-Argonne Offensive under leaders associated with John J. Pershing and coordinated with allied formations including the British Expeditionary Force and the French Army. Between wars, the division was demobilized and later reorganized in the interwar period amid reforms influenced by the National Defense Act of 1920 and the Organizational History of the United States Army. Reactivated and redesignated for World War II, the division served in the Normandy campaign, the Battle of the Bulge, and the Rhine crossing, fighting alongside units such as the U.S. First Army and the U.S. Ninth Army. During the Vietnam War, elements of the division were attached to corps-level commands including XXIV Corps and participated in operations around Quảng Trị Province and other areas in coordination with Army of the Republic of Vietnam. Post-Cold War reorganizations were shaped by initiatives like the Army Transformation and the Modular Force concept, leading to deployments in Operation Desert Storm, Operation Iraqi Freedom, and Operation Enduring Freedom.
The division has undergone multiple organizational models, transitioning from a World War I square division to a World War II triangular division and later to a modular brigade combat team structure linked to reforms by General Eric Shinseki and the U.S. Army Training and Doctrine Command. Typical components have included infantry regiments such as the 8th Infantry Regiment (United States), 12th Infantry Regiment (United States), and 22nd Infantry Regiment (United States), artillery units including the 9th Field Artillery Regiment (United States), engineer battalions like the 10th Engineer Battalion, reconnaissance elements akin to the Armored Reconnaissance Battalion, aviation assets associated with 1st Aviation Brigade (United States), and sustainment units under the U.S. Army Sustainment Command. Command relationships have placed the division under corps such as V Corps and operational control of headquarters elements like the U.S. Army Forces Command during peacetime basing at installations including Fort Carson and Fort Lewis.
In World War I, the division fought in principal offensives such as the Meuse-Argonne Offensive and engaged German forces of the Imperial German Army on the Western Front (World War I), coordinating with allied staffs from France and Belgium. During World War II, the division took part in the Normandy campaign after the D-Day landings, advanced through the Brittany campaign, helped relieve the siege at Bastogne during the Battle of the Bulge, and crossed the Rhine River into Germany, operating in concert with formations including the British Second Army and First Canadian Army. In Vietnam War operations, the division conducted counterinsurgency and conventional operations linked with III Marine Amphibious Force and South Vietnamese units. Elements participated in Operation Desert Storm as part of U.S. Central Command efforts to liberate Kuwait from Iraq; later deployments in Operation Iraqi Freedom and Operation Enduring Freedom involved security, stability, and counterinsurgency missions in provinces such as Baghdad Governorate and Kandahar Province, alongside partners like the Iraqi Security Forces and NATO contingents.
The division and subordinate units have received campaign streamers for engagements including Aisne-Marne offensive, St. Mihiel offensive, Meuse-Argonne Offensive, Normandy Campaign, Northern France Campaign, Ardennes-Alsace Campaign, and operations in Vietnam and the Global War on Terrorism. Unit citations include awards connected to decorations such as the Presidential Unit Citation (United States), the Croix de Guerre, and distinctions from allied governments for actions during World War I and World War II. Individual soldiers earned decorations including the Medal of Honor (United States), Distinguished Service Cross, and Silver Star during multiple conflicts.
Commanders and personnel associated with the division have included senior officers and figures linked to broader U.S. Army history such as John J. Pershing (senior leadership era connections), George S. Patton (comparative operational influence), Raymond O. Barton (World War II command), and divisional leaders like Harold R. Bull. Other notable soldiers and staff have been cited alongside service in formations connected to the division and institutions like the United States Military Academy and Reserve Officers' Training Corps programs.
Throughout its history the division employed weapons and platforms common to U.S. forces: during World War I bolt-action rifles and artillery such as the M1903 Springfield and M1917 3-inch field gun; in World War II small arms and armor including the M1 Garand, M4 Sherman, and 105 mm M2A1 howitzer; Cold War and modern eras saw equipment like the M16 rifle, M1 Abrams, M2 Bradley, M109 Paladin, and aviation types such as the AH-64 Apache and UH-60 Black Hawk. The division shoulder sleeve insignia, nicknamed "Ivy", features a stylized design reflecting the Roman numeral IV and has been displayed on uniforms, guidons, and unit publications alongside distinctive unit insignia manufactured under Institute of Heraldry standards.
Category:Infantry divisions of the United States Army Category:United States Army divisions of World War I Category:United States Army divisions of World War II