An F-16 Fighting Falcon assigned to the South Dakota Air National Guard’s 175th Fighter Squadron thunders skyward at Ellsworth Air Force Base, S.D., Sept. 18, 2012. The 114th Fighter Wing’s F-16s shared the flightline with Ellsworth’s resident B-1 bombers Sept. 17 to 21. (U.S. Air Force photo by Airman 1st Class Hrair H. Palyan/Released)