With the end of WWII in Europe, Col. Davis returned to the United States in June 1945 to command the 477th Composite Group at Godman Field, Kentucky. He later became base commander. In March 1946, he went to Lockbourne Army Air Base, Ohio, as commander of the base, and in July 1947 became Commanding Officer of the 332nd Fighter Wing.
In November 1953, he assumed duties as CO of the 51st Fighter-Interceptor Wing in Korea, flying the F-86 Sabre jet in combat. On May 16th, 1960, he was promoted to the rank of Brigadier General.
From 1954 to 1955, he served as Director of Operations and Training at Far East Air Forces Headquarters, Tokyo. Then he was advanced to the position of Vice Commander, Thirteenth Air Force, with additional duty as Commander, Air Task Force 13.
In April 1957, General Davis arrived at Ramstein, Germany, as chief of staff, Twelfth Air Force, U.S. Air Forces in Europe. When the Twelfth Air Force was transferred to Waco, Texas in December 1957, he assumed new duties as Deputy Chief of Staff for Operations, Headquarters U.S. Air Forces in Europe, Wiesbaden, Germany.
On June 30, 1959, he advanced to the rank of Major General. In July 1961, he returned to the United States and Headquarters U.S. Air Force where he served as the Director of Human Resources and Organization and Deputy Chief of Staff for Programs and Requirements. In February 1965, he was assigned as Assistant Deputy Chief of Staff, Programs and Requirements. He remained in that position until his promotion to Lieutenant General on April 30, 1965. That same month, he was given the assignment as Chief of Staff for the United Nations Command and U.S. Forces in Korea in April 1965. He assumed command of the Thirteenth Air Force at Clark Air Base in the Republic of the Philippines in August 1967. General Davis was assigned as Deputy Commander in Chief, U.S. Strike Command, with headquarters at MacDill Air Force Base, Florida.
On Dec. 9, 1998, Benjamin O. Davis Jr. was advanced to General. President Clinton pinned his four stars.