In addition, he serves as the senior Air Force member, Military Staff Committee, United Nations.
Fish returned to Germany in July 1946 and served as a statistical control officer at Tempelhof and Wiesbaden Air Bases.
He returned to the United States in July 1949 and trained as a navigator-bombardier at Mather Air Force Base, Calif.
In July 1950, during the Korean War, he was transferred to the 162d Tactical Reconnaissance Squadron, which was immediately sent to Korea, where he flew 63 combat missions.
In March 1951 he was assigned as chief, Program Analysis Section, 374th Troop Carrier Wing, Far Eastern Air Forces.
He returned to Langley Air Force Base in June 1951, to train replacement combat crews for B-26 aircraft units in Korea.
In June 1956 he entered the University of Chicago and graduated in August 1957 with a master's degree in business administration.
On May 1, 1978, he was assigned additional duties as assistant for readiness and North Atlantic Treaty matters, and as senior Air Force member, Military Staff Committee, United Nations.