A C-17 Globemaster III assigned to the 437th Airlift Wing, Charleston Air Force Base, S.C., prepares to take off during Red Flag 15-4 at Nellis AFB, Nev., Aug. 25, 2015. A typical Red Flag exercise involves a variety of attack, fighter, bomber, electronic warfare, reconnaissance, recue, aerial refueling and airlift support aircraft. (U.S. Air Force photo by Senior Airman Thomas Spangler)