Maj. Gen Stephen Hoog, 9th Air Force commander, passes the guidon to Col. Korvin Auch, 633d Air Base Wing commander, during the 633d change of command ceremony at Langley Air Force Base, Va., June 23, 2011. Colonel Auch assumed command of the wing from Col. Donald Kirkland. (U.S. Air Force photo by Staff Sgt. Antoinette Gibson/Released)