Lineage and Honors Information as of 19 August 2014
100th Regiment
- Constituted 23 July 1918 in the National Army as Headquarters, 175th Field Artillery Brigade, and assigned to the 100th Division
- Demobilized 30 November 1918
- Reconstituted 24 June 1921 in the Organized Reserves as Headquarters and Headquarters Battery, 175th Field Artillery Brigade, and assigned to the 100th Division
- Organized in December 1921 at Parkersburg, West Virginia
- Reorganized and redesignated 23 February 1942 as Headquarters and Headquarters Battery, 100th Division Artillery
- Ordered into active military service 15 November 1942 and reorganized at Fort Jackson, South Carolina
- Inactivated 10 January 1946 at Camp Patrick Henry, Virginia
- Redesignated 15 October 1946 as Headquarters and Headquarters Battery, 100th Airborne Division Artillery
- Headquarters activated 23 October 1946 at Louisville, Kentucky; Headquarters Battery activated 20 December 1946 at Louisville
- (Organized Reserves redesignated 25 March 1948 as the Organized Reserve Corps; redesignated 9 July 1952 as the Army Reserve)
- Reorganized and redesignated 12 May 1952 as Headquarters and Headquarters Battery, 100th Division Artillery
- Reorganized and redesignated 17 April 1959 as Headquarters and Headquarters Company, 100th Regiment, an element of the 100th Division (Training) (organic elements concurrently organized as new units)
- Regiment ordered into active military service 25 September 1961 at Louisville, Kentucky; released from active military service 15 August 1962 and reverted to reserve status
- Reorganized 26 January 1968 to consist of the 1st and 2d Battalions, elements of the 100th Division (Training)
- Reorganized 5 July 1971 to consist of the 1st, 2d, and 3d Battalions, elements of the 100th Division (Training)
- 1st, 2d, and 3d Battalions inactivated 1 August 1973 and relieved from assignment to the 100th Division (Training)
- Regiment reorganized 16 November 1996 to consist of the 1st, 2d, 3d, 4th, 5th, 6th, 7th, 8th, 9th, and 10th Battalions, elements of the 100th Division (Institutional Training)
- Reorganized 17 October 2005 to consist of the 1st, 2d, 3d, 4th, 5th, 6th, 7th, 8th, 9th, 10th, 11th, 12th, and 13th Battalions, elements of the 100th Division (Institutional Training)
- Elements ordered into active military service for the War on Terrorism
- (9th and 10th Battalions relieved 1 October 2006 from assignment to the 100th Division [Institutional Training])
- Reorganized 15 July-15 August 2008 to consist of the 1st, 2d, 3d, 4th, 5th, 6th, 7th, 8th, 11th, 12th, and 13th Battalions, elements of the 100th Division (Institutional Training)
- (1st, 2d, 4th, 5th, 6th, 7th, and 13th Battalions relieved 1 October 2008 from assignment to the 100th Division [Institutional Training])
- Reorganized 16 September 2009 to consist of the 1st, 2d, and 4th Battalions, elements of the 102d Training Division; the 3d, 8th, 11th, and 12th Battalions, elements of the 100th Training Division; and the 5th, 6th, 7th, and 13th Battalions, elements of the 94th Training Division
CAMPAIGN PARTICIPATION CREDIT
- World War II
- Rhineland
- Ardennes-Alsace
- Central Europe
DECORATIONS
BY ORDER OF THE SECRETARY OF THE ARMY:
ROBERT J. DALESSANDRO
Director, Center of Military History
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