AF
21st Helicopter Squadron
U.S. Air Force
The 21st Helicopter Squadron was originally constituted as the 21st Helicopter Squadron on September 24, 1956, and activated on October 8, 1956. It played a key role in the Vietnam War, particularly noted for its combat search and rescue (CSAR) missions, airlifting troops, and supporting special operations. The squadron operated various helicopters, including the Sikorsky CH-3 and HH-53 “Jolly Green Giant,” becoming famous for its courageous missions under fire. After distinguished service in Southeast Asia, the unit was inactivated and later reactivated for various support roles, continuing its legacy of excellence in rotary-wing operations.