Vinh-Van-Truong was recruited by U.S. Special Forces in Project Delta 1964-65 and graduated from the U.S. Air University, Maxwell, Alabama, for Squadron Officer School and Academic Instructor School, 1967-68. He was 213th Squadron Commander, 1970-71, 51th Wing Combat Commander, 1972-73, and Chief of Staff of Helicopter branch of VNAF Headquarter 1973 until Saigon fell.