Lineage and Honors Information as of 16 September 2019
Headquarters and Headquarters Company
455th Chemical Brigade
- Constituted 7 June 1944 in the Army of the United States as Headquarters and Headquarters Detachment, 100th Chemical Battalion, Motorized
- Activated 5 August 1944 in Italy
- Reorganized and redesignated 15 November 1944 as Headquarters and Headquarters Company, 100th Chemical Mortar Battalion
- Inactivated 13 October 1945 at Camp Myles Standish, Massachusetts
- Redesignated 21 October 1948 as Headquarters and Headquarters Company, 455th Chemical Mortar Battalion and allotted to the Organized Reserve Corps
- Activated 10 November 1948 at Boston, Massachusetts
- Inactivated 15 June 1951 at Boston, Massachusetts
- Redesignated 2 July 1952 as Headquarters and Headquarters Company, 100th Chemical Group; concurrently withdrawn from the Organized Reserve Corps and allotted to the Regular Army
- (Organized Reserve Corps redesignated 9 July 1952 as the Army Reserve)
- Activated 17 July 1952 at Fort McClellan, Alabama
- Reorganized and redesignated 25 November 1953 as Headquarters and Headquarters Detachment, 100th Chemical Group
- Inactivated 24 June 1967 at Fort McClellan, Alabama
- Redesignated 3 March 1998 as Headquarters and Headquarters Detachment, 455th Chemical Brigade; concurrently withdrawn from the Regular Army and allotted to the Army Reserve
- Activated 16 January 2000 at Fort Dix, New Jersey
- Ordered into active military service 10 February 2003 at Fort Dix, New Jersey; released 1 July 2004 from active military service and reverted to reserve status
- Inactivated 15 September 2007 at Fort Dix, New Jersey
- Redesignated 16 September 2019 Headquarters and Headquarters Company, 455th Chemical Brigade and activated at sloan, Nevada
Campaign Participation Credit
- World War II
- Rome-Arno
- North Apennines
- Po Valley
- War on Terrorism
- Global War on Terrorism
Decorations
None
By Order of the Secretary of the Army:
CHARLES R. BOWERY, JR.
Chief of Military History