U.S. Army Col. Dean D. Heitkamp, U.S. Army Aviation Logistics School commander, passes the guidon to Lt. Col. Michael R. Williams, incoming 1st Battalion, 222nd Aviation Regiment commander, at the change-of-command ceremony at Fort Eustis, Va., July 20, 2012. Traditionally, passing the guidon from one commander to another represents the passing of trust and well being of the unit. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)