Control Center, 1st Marine Aircraft Wing. From September 1964 to August 1967, he served as a staff officer in the Air Branch, Joint Exercise Planning Division, Headquarters, Allied Forces, Northern Europe, Oslo, Norway. He was promoted to lieutenant colonel in January 1966. Davis returned to the United States in September 1967, and served consecutively as Executive Officer for Marine Aircraft Group 14, Commanding Officer of VMFA(AW)-224 and Commanding Officer again for VMAT(AW)-202. He attended the Industrial College of the Armed Forces in Washington, D.C., from August 1968 to June 1969, when he was ordered to the Republic of Vietnam as the 1st Marine Aircraft Wing Aviation Safety Officer, and later, as Executive Officer, Marine Aircraft Group 11. Davis was promoted to colonel in August 1970, and a month later, returned to the United States as Executive Officer, Office of the Deputy Chief of Staff (Air), Headquarters Marine Corps, Washington, D.C. He remained in that billet until June 1973, when he transferred to El Toro as Commanding Officer, Marine Aircraft Group 46/Marine Air Reserve Training Detachment. Peacetime Davis became Assistant Wing Commander, 3rd Marine Aircraft Wing, MCAS El Toro, following his advancement to brigadier general on July 1, 1975 and assigned duty as Commander, Marine Corps Air Bases, Western Area/Commanding General, Marine Corps Air Station El Toro, in June 1976. During this tour he was advanced to major general on February 17, 1977 and assigned duty as Commanding General, 3rd Marine Aircraft Wing, MCAS El Toro. From July 6, 1977 to August 8, 1977, he was assigned additional duty as Commanding General, 1st Marine Amphibious Force, Marine Corps Base Camp Pendleton. On February 15, 1978, he was assigned duty as the Commanding General, 1st Marine Aircraft Wing, Marine Corps Base Camp Smedley D. Butler, Okinawa, Japan. He was assigned duty as the Director of Operations, J-3, Pacific Command, Camp H. M. Smith, Hawaii on June 16, 1979. Davis was assigned duty as the Commanding General, Fleet Marine Force, Pacific, Camp H.M. Smith, Hawaii on June 30, 1981, and was promoted to lieutenant general on July 1, 1981. Upon promotion to general, Davis assumed the assignment as Assistant Commandant of the Marine Corps on July 1, 1983 and served in this capacity until his retirement on June 1, 1986. During his term as Assistant Commandant, he served as president of the Marine Corps Association. Davis has flown over 30 different aircraft including;