Lineage and Honors Information as of 27 April 2017
643d Engineer Company
- Constituted 22 February 1944 in the Army of the United States as the 1486th Engineer Maintenance Company
- Activated 3 April 1944 at Camp Van Dorn, Mississippi
- Inactivated 31 March 1946 in Japan
- Redesignated 25 October 1954 as the 643d Engineer Company, allotted to the Regular Army, and activated at Fort Leonard Wood, Missouri
- Inactivated 15 June 1970 in Vietnam
- Activated 16 October 2007 at Schofield Barracks, Hawaii
Campaign Participation Credit
- World War II
- Luzon
- 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
- War on Terrorism
- Campaigns to be determined
Decorations
- Meritorious Unit Commendation (Army), Streamer embroidered LUZON
- Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1967-1968
- Meritorious Unit Commendation (Army), Streamer embroidered IRAQ 2008-2009
- Army Superior Unit Award, Streamer embroidered 2014-2015
- Philippine Presidential Unit Citation, Streamer embroidered 17 OCTOBER 1944 TO 4 JULY 1945
- Republic of Vietnam Civil Action Honor Medal, First Class, Streamer embroidered VIETNAM 1967-1969
By Order of the Secretary of the Army:
CHARLES R. BOWERY, JR.
Chief of Military History