6993rd Security Group

The 6993rd Security Group was a United States Air Force unit activated in 1965, primarily tasked with airborne signals intelligence (SIGINT) operations during the Vietnam War. Based at various locations in Southeast Asia, including Tan Son Nhut Air Base in South Vietnam, the group operated specialized reconnaissance aircraft such as the EC-47 to intercept enemy communications. Its missions provided critical intelligence on North Vietnamese and Viet Cong activities, significantly aiding U.S. and allied operations throughout the conflict. The 6993rd Security Group remained active until its inactivation in 1974, marking nearly a decade of distinguished service.