Assignments
- 1939: National Guard enlisted service
- 1941: 34th Division Artillery, Camp Claiborne, LA, Northern Ireland, North Africa, and Italy as S/Sgt, 1st Sgt, and then battlefield commission to 2Lt (Communications Officer/Forward Observer/Air Observer)
- 1945: US Army Field Artillery School, Fort Sill, OK
- 1949: Student, Field Artillery Officers Advanced Course, Field Artillery School, Fort Sill, OK
- 1950: Battery Officer; then Battery Commander, 18th Field Artillery, Fort Sill, OK
- 1951: Assistant S-3 and Liaison Officer; then Headquarters Battery Commander; then Assistant S-3 and Liaison Officer, 4th Infantry Division Artillery US Army, Europe
- 1954: Student, Artillery Officer Advanced Course, Artillery and Guided Missile School, Fort Sill, OK
- 1955: Battery Commander, Artillery and Guided Missile School Officer Candidate School
- 1956: Gunnery Instructor, Artillery and Guided Missile School, Fort Sill, OK
- 1957: Student, US Army Command and General Staff College, Fort Leavenworth, KS
- 1958: Artillery Section, Eighth US Army with duty station CINCPAC Coordination Center, Philippines
- 1958: Chief, Operations Branch, Artillery Section, Eighth US Army, Korea
- 1959: Assignment Officer, then Executive Officer, Artillery Officers Division, Office of Deputy Chief of Staff for Personnel, Washington, D.C.
- 1963: Student, Armed Forces Staff College, Norfolk, VA
- 1963: Commander, 2d Battalion, 73d Artillery, 3d Armored Division, US Army, Europe
- 1965: Student, Industrial College of the Armed Forces, Washington, D.C.
- 1966: Executive Officer, 25th Infantry Division Artillery, Vietnam
- 1967: Commander, 3d Armored Division Artillery, US Army, Europe
- 1969: Chief of Staff, 3d Armored Division, US Army, Europe
- 1970: Student, US Army Primary Helicopter School, Fort Wolters, TX; later US Army Aviation School, Fort Rucker, AL
- 1970: Commanding General, US Army Support Command, Thailand
- 1972: Deputy Chief, JUSMAGTHAI (Chief MAAG, Laos)
- 1973: Director of Operations, Office Deputy Chief of Staff for Operations and Plans, Washington, D.C.
- 1974: Commanding General, 4th Infantry Division (Mechanized), Fort Carson, CO
- 1975: Deputy Chief of Staff for Operations and Plans, US Army, Washington, D.C.
- 1976: Commanding General, Eighth US Army; and Commander in Chief, US Forces, Korea; and Commander in Chief, United Nations Command
- 1978: Commander in Chief, Republic of Korea-United States Combined Forces Command, Korea
- 1979: Vice Chief of Staff, US Army, Washington, D.C.
- 1982: Chairman, Joint Chiefs of Staff, Washington, D.C.
Read more about this topic: John William Vessey, Jr., Summary of Service