504th Expeditionary Air Support Operations Group
…the Vietnamese Air Force (VNAF). By March 1972, VNAF controllers were directing 90% of airstrikes in South Vietnam. This permitted the 504th's 19th and 22nd Attack Squadrons to transfer to bases in Hawaii and Korea by January 1972. On 15 March, the group was inactivated and its remaining squadrons were reassigned. During…