Constituted 3 May 1861 in the Regular Army as Company B, 2d Battalion, 18th Infantry

            Organized 17 September 1861 at Camp Thomas, Ohio

            Redesignated 20 September 1861 as Company H, 1st Battalion, 18th Infantry

            Redesignated 19 October 1861 as Company A, 1st Battalion, 18th Infantry

            Reorganized and redesignated 21 September 1866 as Company A, 18th Infantry

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

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

            Reorganized and redesignated 15 February 1957 as Headquarters and Headquarters Company, 1st Battle Group, 18th Infantry, and remained assigned to the 1st Infantry Division (organic elements concurrently constituted and activated)

            Relieved 14 April 1959 from assignment to the 1st Infantry Division and assigned to the 8th Infantry Division

            Relieved 1 April 1963 from assignment to the 8th Infantry Division and assigned to the 1st Infantry Division

       Reorganized and redesignated 2 January 1964 as the 1st Battalion, 18th Infantry

            Inactivated 1 November 1983 at Fort Riley, Kansas, and relieved from assignment to the 1st Infantry Division

            Assigned 16 June 1989 to the 197th Infantry Brigade and activated at Fort Benning, Georgia

            Relieved 16 August 1991 from assignment to the 197th Infantry Brigade and assigned to the 24th Infantry Division

            Relieved 16 February 1996 from assignment to the 24th Infantry Division and assigned to the 1st Infantry Division

            Redesignated 1 October 2005 as the 1st Battalion, 18th Infantry Regiment

            Relieved 16 March 2008 from assignment to the 1st Infantry Division and assigned to the 2d Brigade Combat Team, 1st Infantry Division

ANNEX

            Constituted 3 May 1861 in the Regular Army as Company E, 2d Battalion, 16th Infantry

            Organized 2 May 1865 at Fort Ontario, New York

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

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

 

CAMPAIGN PARTICIPATION CREDIT

DECORATIONS

              Presidential Unit Citation (Army), Streamer embroidered BEJA, TUNISIA

            *Presidential Unit Citation (Army), Streamer embroidered NORMANDY

            *Presidential Unit Citation (Army), Streamer embroidered AACHEN, GERMANY

            *Valorous Unit Award, Streamer embroidered BINH LONG PROVINCE

            *Valorous Unit Award, Streamer embroidered DI AN DISTRICT

            *Valorous Unit Award, Streamer embroidered IRAQ 2004-2005

            *Valorous Unit Award, Streamer embroidered BAGHDAD 2006-2007

            *Meritorious Unit Commendation (Army), Streamer embroidered IRAQ 2008-2009

            *Army Superior Unit Award, Streamer embroidered 1994

            *Army Superior Unit Award, Streamer embroidered 1996-1997

            *Army Superior Unit Award, Streamer embroidered 1998-1999

            *French Croix de Guerre with Palm, World War I, Streamer embroidered AISNE-MARNE

            *French Croix de Guerre with Palm, World War I, Streamer embroidered MEUSE-ARGONNE

            *French Croix de Guerre with Palm, World War II, Streamer embroidered KASSERINE

            *French Croix de Guerre with Palm, World War II, Streamer embroidered NORMANDY

            *French Medaille Militaire, Fourragere

            *Belgian Fourragere 1940

*Cited in the Order of the Day of the Belgian Army for action at Mons

*Cited in the Order of the Day of the Belgian Army for action at Eupen-Malmedy

            *Republic of Vietnam Cross of Gallantry with Palm, Streamer embroidered VIETNAM 1965-1968

            *Republic of Vietnam Cross of Gallantry with Palm, Streamer embroidered VIETNAM 1969-1970

            *Republic of Vietnam Civil Action Honor Medal, First Class, Streamer embroidered VIETNAM 1965-1970

             Company B additionally entitled to:

Army Superior Unit Award, Streamer embroidered 1997

 

BY ORDER OF THE SECRETARY OF THE ARMY: