ADG Flights were deployed to South Vietnam with 2 Squadron at Phan Rang Air Base and No. 1 Operational Support Unit (1OSU) at Vung Tau. ADGs were also deployed to Ubon Air Base, Thailand to protect the RAAF detachment based there, including 79 Squadron flying Sabre jets. In Vietnam ADGs conducted both static security tasks and security patrols outside the base perimeter, thus disrupting the Viet Cong ability to conduct stand-off attacks against the bases. Corporal N.E. Power became the first airman to win the Military Medal (MM) since the Second World War for a night action on 11 February 1970, during which an enemy reconnaissance party was successfully ambushed near the perimeter of the Phan Rang base. Airfield Defence Guards also provided most of the door gunners on UH-1 Iroquois helicopters with No. 9 Squadron during the war.