March 29, 1973: Two months after the signing of the Vietnam
peace agreement, the last U.S. combat troops left South
Vietnam as Hanoi freed the remaining American prisoners
of war held in North Vietnam. America’s direct eight-year
intervention in the Vietnam War was at an end. In Saigon,
some 7,000 U.S. Department of Defense civilian employees
remained behind to aid South Vietnam in conducting what
looked to be a fierce and ongoing war with communist North
Vietnam.