June 1949, he was transferred to the Marine Corps Schools in Quantico, Virginia, and appointed commanding officer of the 22nd Marine Regiment, which served as the training unit for new Marine Corps officers at the Basic School. The 22nd Marines were inactivated at the beginning of October 1949 and its troops were incorporated into the School Troops. Buse was promoted to the rank of colonel on the same time and appointed commanding officer of the School Troops. He remained at Quantico and later commanded the Special Training Regiment stationed there. Colonel Buse was transferred to Camp Lejeune in September 1950 and assumed command of the 6th Marine Regiment stationed there. The 6th Marines were attached to the 2nd Marine Division and Buse was transferred to the divisional staff and appointed assistant chief of staff for operations and training. At the end of September 1952, Buse was ordered to Korea and assigned to the staff of the 1st Marine Division under Major General Edwin A. Pollock. Buse subsequently succeeded Colonel Austin R. Brunelli as Division Chief of Staff on October 11 and later participated in the defense of the western front. Buse participated in the battles of the Samichon River and Outpost Vegas. For his service in this capacity, he was decorated with the Legion of Merit with Combat "V". Buse was replaced by Colonel Lewis W. Walt on June 14, 1953, and transferred back to the United States the following month. His next assignment was again with the Plans and Operations Section at Headquarters Marine Corps. In July 1954, Major General Edwin A. Pollock was appointed commanding general of the Marine Corps Recruit Depot Parris Island, South Carolina and, aware of Buse's skills as an staff officer, chose him as his chief of staff. Buse worked with Pollock for the next three years. When General Pollock was appointed Commanding General Fleet Marine Force Pacific on Hawaii at the beginning of August 1956, Buse followed him as his chief of staff. When Pollock was transferred to Naval Station Norfolk, Virginia as Commanding General Fleet Marine Force Atlantic in December 1957, Buse went with him, again as his chief of staff. While in this capacity, he was promoted to the rank of brigadier general in August 1958. Buse was transferred to Washington, D.C., during the following month and appointed Marine Corps liaison officer in the office of the Vice Chief of Naval