Roger Staubach, U.S. Navy
Prior to becoming one of the most iconic players both in the storied history of the Dallas Cowboys franchise and perhaps the NFL as a whole, Roger Staubach attended the U.S. Naval Academy where he won the 1963 Heisman Trophy, and after graduation he served in the U.S. Navy.
That service included a one-year tour of duty in Vietnam. He served as a Supply Corps officer for the Navy at the Chu Lai base/port, which was a secondary air base providing relief for Da Nang Air Base.