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

 

DECORATIONS

Meritorious Unit Commendation (Army), Streamer embroidered LUZON

Meritorious Unit Commendation (Army), Streamer embroidered VIETNAM 1967-1968

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: