U.S. Air Force Col. Kevin Robbins, left, 1st Fighter Wing commander, presents the 1st Operations Group guidon to Col. Edward Corcoran, the new 1st OG commander, during a change-of-command ceremony at Langley Air Force Base, Va., July 13, 2012. Corcoran has flown more than 2,800 hours, including 185 combat hours in F-15 Eagles. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)