Known for his bravery, Roger Donlon qualified for a position in the Special Forces and become the first recipient of the Medal of Honor in Vietnam. Donlon was born and raised in New York who first served the Air Force before re-enlisting into the Army. He received the Medal of Honor after protecting and leading his troop in a massive firefight in Vietnam. He received the Medal of Honor on Dec. 5, 1964, making him the first recipient of the MOH during the Vietnam War.
Source: https://www.wearethemighty.com/watch/roger-donlon-first-medal-of-honor-vietnam/