639th Electronic Systems Squadron change of command
653rd Electronic Systems Wing Vice Director Col. Mark Murphy (foreground, from left) stands at attention with new 639th Electronic Systems Squadron Commander Lt. Col. Mark Davis and outgoing 639th Electronic Systems Squadron Commander Lt. Bryan Bagley during the change of command ceremony held in the Mitre building July 8. Colonel Murphy officiated and Staff Sgt. Damion Daniels (background), 653rd Electronic Systems Group, served as the guidon bearer as Colonel Davis assumed command of the squadron. (U.S. Air Force photo by Rick Berry)