A KC-135 Stratotanker from the 92nd Air Refueling Wing, Fairchild Air Force Base, Wa., flies over the Nevada Test and Training Range during Red Flag 18-2 hosted by Nellis Air Force Base, Nev., March 15, 2018. Red Flag is a realistic combat training exercise involving air, space and cyber forces of the U.S. and its allies. The exercise trains participants for potential future conflicts or war. (U.S. Air Force photo by Senior Airman Janelle Patino)