Crew chiefs from the 18th Aircraft Maintenance Squadron prepare to launch an F-16 Fighting Falcon Aggressor flown by Brig. Gen. Mark W. Graper during his last flight as commander of the 354th Fighter Wing Feb. 05, 2010, Eielson Air Force Base, Alaska. General Graper will relinquish command to Colonel James Post III Feb. 12. (U.S. Air Force photo/Staff Sgt. Christopher Boitz)