When the government of South Vietnam collapsed in 1975, Australia ordered the evacuation of its embassy in Saigon. The final mission undertaken by ADGs in Vietnam was to provide security for the evacuation. The "last" evacuation aircraft was severely overloaded and four ADGs were left on the tarmac at Tan Son Nhut airfield, each armed with a pistol and four rounds of ammunition; a C-130 was diverted from Thailand to evacuate them later in the day. Over 350 ADGs served in Vietnam, six being killed in the conflict. In addition to the MM awarded to Powers, GRDEFOs and ADGs were awarded an MBE, eight mentions in dispatches and four Distinguished Flying Medals of the ten awarded to RAAF members.