1st Battalion - 168th Infantry Regiment
The 1st Battalion, 168th Infantry Regiment, was originally constituted and organized in May 1861 as the 4th Regiment Iowa Volunteer Infantry and mustered into Federal service 8-31 August 1861. Mustered out of Federal service 24 July 1865 at Louisville, KY.
The unit was sent into Federal service on 26 June 1916, for service on the Mexican Border and mustered out on 20 February 1917. It was drafted into Federal service on 5 August 1917 before being reorganized and redesignated as the 168th Infantry and assigned to the 42d Infantry Division on 16 August 1917. It was demobilized on 17 May 1919 at Camp Dodge, IA.
Reorganized and Federally recognized in 1920-21 as the 168th Infantry, the unit was assigned to the 34th Division. It was inducted into Federal service on 10 February 1941 at home station. It inactivated on 3 November 1945 at Camp Patrick Henry, VA. The unit was reorganized and Federally recognized on 23 January 1947 with Headquarters at Council Bluffs, IA.
The unit was reorganized as the parent regiment under the Combat Arms Regimental System to consist of the 1st Battle Group, an element of the 34th Infantry Division. Subsequent assignments included being assigned to the 47th Infantry Division. It became assigned to the 34th Infantry Division on the 10th of February, 1991.
