EIELSON AIR FORCE BASE, Alaska -- An F-15C Aggressor from 65th Aggressor Squadron, Nellis Air Force Base, Nev., prepares for take off here July 11. Red Flag-Alaska enables aviation units to sharpen their combat skills by flying 10 simulated combat sorties in a realistic threat environment. Additionally, the training allows them to exchange tactics, techniques, and procedures and improve interoperability. (U.S. Air Force photo by Airman 1st Class Christopher Griffin)