Colonel Peter Bonetti, 90th Missile Wing commander, passes the guidon to Col. Carolyn Ammons, 90th Mission Support Group incoming commander, during the 90th MSG assumption-of-command ceremony Jun 21, 2109, on F.E. Warren Air Force Base, Wyo. An assumption of command ceremony is a tradition that represents a formal transfer of authority and responsibility to the incoming commander. (U.S. Air Force photo by Senior Airman Abbigayle Williams)