During February 1985, Colonel Boomer returned to Quantico to assume command of the Marine Security Guard Battalion. While serving in this capacity, he was selected in April 1986 for promotion to brigadier general. He was advanced to that grade on 2 June 1986 and assigned duty as the Director of Public Affairs, Headquarters Marine Corps on 7 June 1986. He served in this capacity until 27 May 1988, when he was assigned duty as the Commanding General, 4th Marine Division (Reinforced), FMF, New Orleans. On 14 March 1989, he was advanced to major general; then, promoted to lieutenant general on 8 August 1990.