5-18 Infantry

5th Battalion, 18th Infantry

"Spartans"

Lineage and Honors
 

Organized 19 September 1861 in the Regular Army at Camp Thomas, Ohio, as Company E, 2d Battalion, 18th Infantry

Reorganized and redesignated 31 December 1866 as Company E, 18th Infantry

Consolidated in April 1869 with Company E, 25th Infantry (see ANNEX) and consolidated unit designated as Company E, 18th Infantry

(18th Infantry assigned 8 June 1917 to the 1st Expeditionary Division [later redesignated as the 1st Infantry Division])

Inactivated 15 February 1957 at Fort Riley Kansas, and relieved from assignment to the 1st Infantry Division 

Redesignated 16 June 1989 as Headquarters and Headquarters Company, 5th Battalion, 18th Infantry (organic elements concurrently constituted) and assigned to the 3d Armored Division; concurrently activated in Germany using personnel and equipment from the 1st Battalion, 36th Infantry

Inactivated in Germany

(ANNEX)

Organized 12 May 1862 in the Regular Army at Camp Thomas, Ohio, as Company E, 2d Battalion, 16th Infantry

Reorganized and redesignated 21 September 1866 as Company E, 25th Infantry

Consolidated in April 1869 with Company E, 18th Infantry and consolidated unit designated as Company E, 18th Infantry