The 2nd Infantry Division ("Indianhead") ("2ID" or "2nd ID") is a formation of the United States Army. Its current primary mission is the defense of South Koreain the initial stages of an invasion from North Korea until other American units can arrive. There are approximately 17,000 soldiers in the 2nd Infantry Division, with 10,000 of them stationed in South Korea, accounting for about 35% of the United States Forces Korea personnel.
The 2nd Infantry Division, unlike any other division in the Army, is made up partially of Korean soldiers, called KATUSAs (Korean Augmentation to US Army). This program began in 1950 by agreement with South Korean President Syngman Rhee. Some 27,000 KATUSAs served with the US forces at the end of the Korean War. As of May 2006, approximately 1,100 KATUSA soldiers serve with 2ID. There were also more than 3,000 Dutch soldiers assigned to the division between 1950 and 1954.
- 22 October 1943: Attached to First Army
- 24 December 1943: XV Corps, but attached to First Army
- 14 April 1944: V Corps, First Army
- 1 August 1944: V Corps, First Army, 12th Army Group
- 17 August 1944: XIX Corps
- 18 August 1944: VIII Corps, Third Army, 12th Army Group
- 5 September 1944: VIII Corps, Ninth Army, 12th Army Group
- 22 October 1944: VIII Corps, First Army, 12th Army Group
- 11 December 1944: V Corps
- 20 December 1944: Attached, with the entire First Army, to the British 21st Army Group
- 18 January 1945: V Corps, First Army, 12th Army Group
- 28 April 1945: VII Corps
- 1 May 1945: V Corps
- 6 May 1945: Third Army, 12th Army Group