Bud is a retired officer in the United States Air Force, a triple ace of World War II, and the highest scoring living American fighter ace. During the war he was the highest scoring flying ace in his P-51 Mustang squadron. Towards the end of Anderson's two combat tours in Europe in 1944 he was promoted to major at 22, a young age even for a highly effective officer in wartime. After the war Anderson became a well regarded fighter test pilot, and a fighter squadron and wing commander. He served his wing commander tour in combat in the Vietnam War. He retired as a full colonel in 1972, after which he worked in flight test management for McDonnell Douglas.