Col. Trevor Flint, 90th Maintenance Group commander, passes the guidon to Maj. Jeremy Russell, 90th Missile Maintenance Squadron commander, during the 90th MMXS assumption of command July 8, 2015, as Master Sgt. Lorenzo Peterson, 90th MMXS first sergeant, stands in the background in the 90th MXG High Bay on F.E. Warren Air Force Base, Wyo. The ceremony signified the transition of command from Maj. Richard Fongemie to Russell. (U.S. Air Force photo by Lan Kim)