Normandy
The headquarters, XV Army Corps, was redesignated on 19 August 1942 as headquarters, XV Corps, and ordered into active military service at Camp Beauregard, Louisiana, on 15 February 1943.
XV Corps took part in the July 1944 breakout from Normandy, Operation Cobra. The corps liberated Le Mans on 8 August 1944. In a controversial decision by the Twelfth United States Army Group commander, Lieutenant General Omar Bradley, the corps was halted at Argentan on 13 August 1944, before it could link up with Canadian troops, allowing Germans trapped in the Falaise Pocket an escape route to the east. Seizing a bridgehead over the Seine River on 20 August 1944, the corps then mopped up German resistance along its west bank. Subsequently, the corps had no divisions assigned to it and used its corps troops to screen the southern flank of the U.S. XII Corps.
V Corps, formerly known as the Fifth Corps, is a regular corps of the United States Army headquartered at Fort Knox, Kentucky and Camp Kościuszko, Poland.
III Corps is a corps of the United States Army headquartered at Fort Cavazos, Texas. It is a major formation of the United States Army Forces Command.
The 9th Armored Division was an armored division of the United States Army during World War II. In honor of their World War II service, the 9th was officially nicknamed the "Phantom Division."
The 14th Armored Division was an armored division of the United States Army assigned to the Seventh Army of the Sixth Army Group during World War II. It remains on the permanent roll of the Regular Army as an inactive division, and is eligible for reactivation. The division is officially nicknamed the "Liberators".
The VI Corps was activated as VI Army Corps in August 1918 at Neufchâteau, France, serving in the Lorraine Campaign. Constituted in the Organized Reserves in 1921, it was allotted to the Regular Army in 1933 and activated on 1 August 1940 at Fort Sheridan, Illinois. VI Corps took part in some of the most high-profile operations in World War II.
The 8th Infantry Division, ("Pathfinder") was an infantry division of the United States Army during the 20th century. The division served in World War I, World War II, and Operation Desert Storm. Initially activated in January 1918, the unit did not see combat during World War I and returned to the United States. Some units would serve in the American Expeditionary Force to Siberia. Activated again on 1 July 1940 as part of the build-up of military forces prior to the United States' entry into World War II, the division saw extensive action in the European Theatre of Operations. Following World War II, the division was moved to West Germany, where it remained stationed at the Rose Barracks in Bad Kreuznach until it was inactivated on 17 January 1992.
The 103rd Infantry Division was a unit of the United States Army that served in the U.S. Seventh Army of the 6th Army Group during World War II.
The 79th Infantry Division was an infantry formation of the United States Army Reserve in World Wars I and II.
The 83rd Infantry Division ("Thunderbolt") was a formation of the United States Army in World War I and World War II.
The 90th Infantry Division was a unit of the United States Army that served in World War I and World War II. Its lineage is carried on by the 90th Sustainment Brigade.
The 44th Infantry Division was a division of the United States Army National Guard from October 1920 to November 1945, when it was inactivated after Federal Service during World War II. A second 44th Infantry Division existed in the Illinois Army National Guard from 1946 until October 1954, when that division was disbanded after federal service during the Korean War.
The 9th Infantry Division is an inactive infantry division of the United States Army. It was formed as the 9th Division during World War I, but never deployed overseas. In later years it was an important unit of the U.S. Army during World War II and the Vietnam War. It was also activated as a peacetime readiness unit from 1947 to 1962 at Fort Dix, New Jersey as a Training Division, West Germany, and Fort Carson, Colorado as a Full Combat Status Division, and from 1972 to 1991 as an active-duty infantry division at Fort Lewis, Washington. The division was inactivated in December 1991.
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 XXI Corps was a corps of the U.S. Army during World War II. It was constituted on 2 December 1943, and activated on 6 December 1943 at Camp Polk, Louisiana. XXI Corps fought for 116 days in the European Theater of Operations, starting in the Alsace, crossing into southern Germany, and swarming into Austria, with individual elements reaching into northern Italy. The corps was commanded in combat by Major General Frank W. Milburn as a subordinate unit of the Seventh U.S. Army.
The U.S. VIII Corps was a corps of the United States Army that saw service during various times over a fifty-year period during the 20th century. The VIII Corps was organized 26–29 November 1918 in the Regular Army in France and demobilized on 20 April 1919 at Montigny-sur-Aube. The VIII Corps fought across Europe from Normandy to Czechoslovakia in World War II. After World War II, the corps was inactivated and reactivated several times, with the final inactivation occurring in 1968.
The XII Corps fought from northern France to Austria in World War II. Constituted in the Organized Reserves in 1933, it was activated on 29 August 1942 at Columbia, South Carolina. XII Corps became operational in France as part of Lieutenant General George S. Patton's Third Army on 1 August 1944. Initially commanded by Major General Gilbert R. Cook, bad health forced MG Cook to relinquish command to Major General Manton S. Eddy within three weeks. MG Eddy commanded the corps until late April 1945, when his own health problems forced him to turn over command to MG Stafford LeRoy Irwin.
The 15th Cavalry Regiment is a cavalry regiment of the United States Army. It was one of the Expansion Units originally established for the Spanish–American War, but has been a general workhorse unit ever since.
The 106th Cavalry Regiment was a mechanized cavalry unit of the United States Army in World War II recognized for its outstanding action. The group was organized in 1921 as part of the Illinois National Guard and during the Spanish–American War and World War I was known as the 1st Regiment Illinois Volunteer Cavalry. It underwent a number of reorganizations before World War II. Like other Guard units during the inter-war years, the 106th held weekly or monthly drills and yearly training. Readiness for war in 1940 led to the mechanization of the unit and induction into federal service at Camp Livingston, Louisiana on 25 November 1940.
The 36th Infantry Regiment is a United States Army infantry regiment.
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.
United States 
United States Army 