NELLIS AIR FORCE BAE, Nev. -- A KC-135 Stratotanker jet assigned to the 100 Air Refueling Wing at Royal Air Force Mildenhall, takes off during Red Flag 18-1 at Nellis Air Force Base, Nevada, Feb. 5, 2018. Red Flag is one of a series of advanced training programs administered by the U.S. Air Force Warfare Center to train aircrews. (U.S. Air Force photo by Senior Airman Kevin Tanenbaum)
USAF. (U.S. Air Force Graphic by Rosario "Charo" Gutierrez)