The 200th Coast Artillery (AA) (200 CA) was a United States Army unit during the first half of World War II. Today descendant elements serve with the New Mexico Army National Guard as the 200th Infantry.
The 8th Infantry Regiment of the United States, also known as the "Fighting Eagles", is an infantry regiment in the United States Army. The 8th Infantry participated in the Mexican War, American Civil War, Philippine Insurrection, Moro Rebellion, World War I, World War II, Vietnam War, and Iraq Campaign.
The 199th Infantry Brigade (Light) is a unit of the United States Army which served in the Army Reserve from 1921 to 1940, in the active army from 1966 to 1970 (serving in the Vietnam War), briefly in 1991–1992 at Fort Lewis, and from 2007 as an active army training formation at Fort Moore.
The 66th Armor Regiment is the oldest armored unit in the United States Army, tracing its lineage to the 301st Tank Battalion which served with distinction soon after it was formed in the First World War; the 301st trained at Camp Meade, Maryland, where then-Cpt. Dwight D. Eisenhower was an instructor. It has often been rumored that the 301st, the parent unit of the 66th, was first commanded by Col. George S. Patton, but this appears not to have been the case; while Patton was the first officer assigned to the Tank Corps, and while the 301st Tank Battalion was the first unit formed, Patton went nearly immediately to France to train Americans attached to Allied commands. The 301st was the only American heavy tank battalion to have seen action in the war. After the war, the 301st transitioned in the Regular Army to become the 66th Infantry Regiment by way of the 16th Tank Battalion.
The 194th Armored Brigade is a separate brigade of the US Army. All armor, cavalry, and armor and cavalry mechanic soldiers, and Marines in equivalent specialties, are trained by the 194th under the armor component of the Maneuver Center of Excellence at Fort Moore, Georgia, where the 194th has been garrisoned since 2012.
The 73rd Cavalry Regiment is a Cavalry Regiment in the United States Army, first formed in 1941. Three squadrons of the 73rd Cavalry Regiment provided reconnaissance, surveillance, and target acquisition (RSTA) to the Brigade Combat Teams of the 82nd Airborne Division through July 2024 when the last of the three squadrons was deactivated. 3rd Squadron was assigned to 1st Brigade, 1st Squadron was assigned to 2nd Brigade, 5th Squadron was assigned to 3rd Brigade, and 4th Squadron was assigned to 4th Brigade.
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 68th Armor Regiment is an armored regiment of the United States Army. It was first activated in 1933 in the Regular Army as the 68th Infantry Regiment.
The 64th Armor Regiment is an armor regiment of the United States Army, organized under the United States Army Regimental System. It is descended from the 758th Tank Battalion (Light) that served in the Italian campaign during World War II. Redesignated as the 64th Tank Battalion, it was assigned to the 3rd Infantry Division during the Korean War and it spent most of the Cold War stationed in West Germany before elements were transferred to Ft. Stewart, Georgia in the late 1990s. The regiment participated in Desert Shield, Desert Storm, Desert Fox, Desert Spring, Operation Iraqi Freedom and Operation Enduring Freedom.
The 18th Cavalry Regiment is a parent cavalry regiment of the United States Army.
The 48th Infantry Regiment is an infantry regiment in the United States Army first formed in 1917.
The 34th Armor Regiment is an armored regiment of the United States Army formed in 1941.
The 67th Armored Regiment is an armored regiment in the United States Army. The regiment was first formed in 1929 in the Regular Army as the 2nd Tank Regiment (Heavy) and redesignated as the 67th Infantry Regiment (Medium Tanks) in 1932. It first became the 67th Armor in 1940. The regiment participated in World War I, World War II, Desert Storm/Desert Shield, Operation Iraqi Freedom, Operation Enduring Freedom, Operation Spartan Shield, Operation Inherent Resolve, Operation Resolute Support, and Operation Freedom's Sentinel.
The 107th Cavalry Regiment, Ohio Army National Guard, is a parent regiment under the U.S. Army Regimental System, with headquarters at Hamilton, Ohio. It currently consists of the 2nd Squadron, 107th Cavalry Regiment, part of the 37th Infantry Brigade Combat Team (BUCKEYE), Ohio National Guard located throughout southwest Ohio.
The 76th Field Artillery Regiment is a field artillery regiment of the United States Army. First formed as a cavalry regiment in 1916, the regiment was converted to field artillery in 1917, and served in Europe during World War I with the 3rd Division and as a separate battalion during World War II, as well as in peacetime at Fort Knox, KY, and Fort Devens, MA. Since 1959, 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 Infantry Division in Germany and Operation Iraqi Freedom, with the 7th Infantry Division in Korea, and in the Army Reserve. No regimental elements are currently active.
The 77th Field Artillery Regiment is a field artillery regiment of the United States Army. First constituted 1916 in the Regular Army as a cavalry regiment. Reorganized in 1917 as field artillery and given its current designation.
The 102nd Cavalry Regiment is a cavalry regiment of the United States Army first established in 1921. It has seen service in the Second World War, including in Normandy and at the Battle of the Bulge, in Iraq 2008-2009, in Jordan and Somalia in 2019, plus many exercises and Hurricane Sandy and Hurricane Maria relief. Its tradition of service is carried on today by the 1st Squadron 102nd Cavalry Regiment.
The 3rd Aviation Regiment is a regiment of the United States Army Aviation Branch. It operates the Boeing AH-64 Apache attack helicopter, Sikorsky UH-60 Black Hawk helicopter, and Boeing CH-47 Chinook helicopter. It has been associated with the 3rd Infantry Division for some time.
The 40th Armor Regiment was an armored regiment of the United States Army until the inactivation of its last element, its 1st Battalion, in 1996. It was redesignated and reactivated in 2005 as the 40th Cavalry Regiment and assigned to the 4th Brigade (ABN) 25th infantry division and in 2022 to the 2nd Infantry Brigade Combat Team (Airborne), 11th Airborne Division.
United States 
