531st Engineer Detachment
Lineage and Honors Information as of 24 June 2009
531st Engineer Detachment Lineage
Constituted 21 August 1943 in the Army of the United States as the 1621st Engineer Model Making Detachment and activated at Fort Belvoir, Virginia
Inactivated 17 December 1945 at Schofield Barracks, Hawaii
Redesignated 31 October 1950 as the 531st Engineer Model Making Detachment and allotted to the Regular Army
Activated 10 December 1950 at Fort Belvoir, Virginia
Inactivated 14 September 1953 at Fort Belvoir, Virginia
Redesignated 30 December 1965 as the 531st Engineer Detachment
Activated 1 February 1966 at Fort Devens, Massachusetts
Inactivated 1 January 1972 in Vietnam
Activated 1 September 1980 at Fort Ord, California
Inactivated 15 August 1988 at Fort Ord, California
Activated 16 October 2008 at Fort Lewis, Washington
531st Engineer Detachment Honors
Campaign Participation Credit
World War II: European-African-Middle Eastern Theater, Streamer without inscription; Asiatic-Pacific Theater, Streamer without inscription
Vietnam: Counteroffensive, Phase II; Counteroffensive, Phase III; Tet Counteroffensive; Counteroffensive, Phase IV; Counteroffensive, Phase V; Counteroffensive, Phase VI; Tet 69/Counteroffensive; Summer-Fall 1969; Winter-Spring 1970; Sanctuary Counteroffensive; Counteroffensive, Phase VII; Consolidation I; Consolidation II
Decorations
Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1966-1967
Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1967-1968