A B-52H Stratofortress assigned to the 23rd Bomb Squadron, Minot Air Force Base, N.D., takes off during Red Flag 15-2 from Nellis Air Force Base, Nev., March 3, 2015. Red Flag is a realistic combat training exercise involving the air forces of the U.S. and its allies. (U.S. Air Force photo by Senior Airman Thomas Spangler)