An F-22 Raptor, from Joint Base Langley-Eustis, Va., receives fuel from a KC-135 Stratotanker over the Nevada Test and Training Range in a training sortie during Red Flag 16-3, July 21, 2016. Red Flag, which is conducted by the 414th Combat Training Squadron at Nellis AFB, is a realistic combat training exercise involving the air forces of the U.S. and its allies that maximizes the combat readiness and survivability of participants by providing a realistic training environment. (U.S. Air Force photo by Senior Airman Jake Carter/Released)