The 503rd Infantry Regiment, formerly the 503rd Parachute Infantry Regiment and the 503rd Airborne Infantry Regiment, is an airborne infantry regiment of the United States Army. The regiment served as an independent regiment in the Pacific War during World War II; at Fort Campbell, Kentucky; in Okinawa, Japan; and in Germany. Regimental elements have been assigned to the 2nd Infantry Division, the 11th Airborne Division, the 24th Infantry Division, 25th Infantry Division, the 82nd Airborne Division, 101st Airborne Division, and the 173rd Airborne Brigade Combat Team. Regimental elements have participated in campaigns in the Vietnam War, Operation Enduring Freedom–Afghanistan, and Operation Iraqi Freedom. The regiment claims 15 Medal of Honor recipients: two from World War II, ten from Vietnam, and three from Afghanistan. A parent regiment under the U.S. Army Regimental System. The regiment's 1st and 2nd Battalions are active, assigned to the 173rd Airborne Brigade, based at Caserma Ederle, Vicenza, Italy. The 3rd and 4th Battalions as well as Companies E, F, G, H, and I have been inactived.
The 187th Infantry Brigade was an infantry brigade of the United States Army.
The 191st Infantry Brigade was constituted on 24 June 1921 in the Organized Reserves as Headquarters and Headquarters Company, 191st Infantry Brigade, and assigned to the 96th Division. It was organized in December 1921 at Portland, Oregon, and redesignated on 23 March 1925 as Headquarters and Headquarters Company, 191st Brigade, then redesignated on 24 August 1936 as Headquarters and Headquarters Company, 191st Infantry Brigade. It was converted and redesignated on 6 April 1942 as the 96th Reconnaissance Troop, 96th Division. The Troop was ordered into active military service on 15 August 1942 and reorganized at Camp Adair, Oregon, as the 96th Cavalry Reconnaissance Troop, an element of the 96th Infantry Division. It was reorganized and redesignated on 16 August 1943 as the 96th Reconnaissance Troop, Mechanized, and then again reorganized and redesignated on 20 November 1945 as the 96th Mechanized Cavalry Reconnaissance Troop. Following World War II service with the 96th Infantry Division in the Pacific, it was inactivated on 3 February 1946 at Camp Anza, California.
The 181st Infantry Brigade is an infantry brigade of the United States Army based at Fort McCoy, Wisconsin. As a First Army brigade, the unit serves primarily in a partnering and training role for Reserve Units. The brigade is subordinate to the First United States Army, headquartered at Rock Island Arsenal, Illinois. It has ten subordinate battalions.
The 177th Armored Brigade is an AC/RC unit based at Camp Shelby, Mississippi. The unit is responsible for training selected United States Army Reserve and National Guard units. The unit was formerly designated as 3rd Brigade, 87th Division. The brigade is a subordinate unit of First Army.
The 174th Infantry Brigade is an infantry brigade of the United States Army based at the Fort Dix entity of Joint Base McGuire-Dix-Lakehurst, New Jersey. A multi-component training unit, the brigade provides operational training and increased readiness for units in the continental Northeast.
The 70th Armor Regiment is an armored (tank) unit of the United States Army. It was constituted as the 70th Tank Battalion in July 1940, an independent tank battalion intended to provide close support to infantry units. In this role, it saw action in the Mediterranean and European Theater of Operations, making assault landings and fighting with the 9th Infantry Division in North Africa, and with the 1st Infantry Division in Sicily. The battalion supported the 4th Infantry Division on Utah Beach during the D-Day landings in France, and fought with the 4th Infantry Division through the remainder of World War II. The 70th Tank Battalion was one of the first three tank battalions to deploy to Korea in the Korean War, where it saw significant action, primarily with the 1st Cavalry Division.
The 3rd Brigade Combat Team, 10th Mountain Division is an infantry brigade combat team of the United States Army based at Fort Polk, Louisiana. Since its activation in 2004, the brigade has deployed four times to Afghanistan in support of Operation Enduring Freedom. In 2014, the brigade inactivated at Fort Drum, NY, and its infantry battalions were reassigned to other brigades while its special troops battalion, field artillery battalion, brigade support battalion and cavalry squadron were inactivated. The brigade reactivated at Fort Polk, LA in 2015 by reflagging the assets of the 4th Brigade Combat Team, 10th Mountain Division, which was inactivated. The infantry, cavalry and field artillery battalions of the 4th Brigade were reassigned to the 3rd Brigade. The brigade deployed to Iraq in 2017 in support of Operation Inherent Resolve. Recently, the brigade deployed to the Southwest Border in 2019 in support of Operation Faithful Patriot.
The 1st Brigade, 24th Infantry Division was an infantry brigade of the United States Army. Before its most recent deactivation in 2006, it was based at Fort Stewart, Georgia. It was a divisional brigade of the 24th Infantry Division.
The 71st Cavalry was originally constituted on 3 December 1941 in the Army of the United States as the 701st Tank Destroyer Battalion.
The 3rd Field Artillery Regiment is a field artillery regiment of the United States Army, first formed in 1812, although regimental units trace their lineages as far back as 1794. Based on the service of these antecedents, the regiment claims battle honors for the War of 1812, the Seminole campaign, the Mexican War, the Civil War, the Spanish–American War, and the Philippine Insurrection. The regiment served with the 6th Division during World War I, with the 5th Division, 6th Division and 2d Cavalry Division between the world wars, and with the 9th Armored Division during and after World War II. Since 1961, the regiment has been a parent regiment under the Combat Arms Regimental System and the U.S. Army Regimental System, with regimental elements serving with the 1st, 6th, and 8th Infantry Divisions; 2nd and 3rd Armored Divisions; 1st Cavalry Division; 194th Armored Brigade; and various field artillery brigades and groups. Two regimental battalions are currently active: the 2nd Battalion in the 1st Armored Division and the 5th Battalion in the 17th Field Artillery Brigade
The 9th Field Artillery Regiment is a field artillery regiment of the United States Army first formed in 1916. The regiment served in Hawaii during World War I, 3rd, 4th, 7th, and 9th Divisions between the world wars, and with 3rd Infantry Division during World War II and Korea. Since 1957, the regiment has been a parent regiment under the Combat Arms Regimental System and the U.S. Army Regimental System, with regimental elements serving with the 3rd, 4th, 10th, 25th, 79th, 83rd, and 96th Infantry Divisions and various field artillery brigades and groups. The regiment's single active component, the 1st Battalion, 9th Field Artillery Regiment, is assigned to the 2nd Brigade Combat Team, 3rd Infantry Division and stationed at Fort Stewart, Georgia.
The 20th Field Artillery Regiment is a field artillery regiment of the United States Army constituted 1 July 1916 in the Regular Army. It served in France during the First World War with the 5th Division, at St. Mihiel and Lorraine before inactivation on 5 September 1921 at Camp Bragg, North Carolina.
The 41st Field Artillery Regiment is a field artillery regiment of the United States Army.
The 51st Infantry Regiment is a regiment of the United States Army first established in 1917.
The 7th Engineer Battalion is a unit of the United States Army located at Fort Drum, New York. This battalion falls under the 10th Mountain Division's 1st Brigade Combat Team. The battalion has the Brigade Combat Team's engineer companies, military intelligence company, and signal company.
United States Army Europe and Africa (USAREUR-AF) is an Army Service Component Command (ASCC) /Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) and U.S. Africa Command (AFRICOM) area of responsibility (AOR).
The 525th Expeditionary Military Intelligence Brigade (Expeditionary) is a unit of the United States Army specializing in the acquisition and analysis of information with potential military value. On 28 October 2014, the unit was reflagged from the "525th Battlefield Surveillance Brigade" to an expeditionary military intelligence brigade, the first of its kind.
The 4th Brigade Combat Team, 82nd Airborne Division is an inactive Airborne Brigade of the United States Army. The brigade was active from 1968-1969, and from 2006-2014. The brigade conducted three rotations to Afghanistan, in 2007 and 2008, 2009 and 2010, and 2012. The brigade's two infantry battalions deployed for a fourth time in 2013-2014, and became part of other BCTs in the division upon their redeployment.
The 338th Infantry Regiment was a National Army Infantry Regiment first organized for service in World War I as part of the 85th Infantry Division in Europe. It later served in the Mediterranean Theater during World War II. Since then it has served as a training Regiment, training Army Reserve and Army National Guard Soldiers for service in support of the Global War on Terror.
United States 
