A B-1B Lancer assigned to the 37th Bomb Squadron, Ellsworth Air Force Base, S.D., takes off during Red Flag 15-2 from Nellis Air Force Base, Nev., March 3, 2015. The U.S. Air Force’s premier exercise provides aircrews and ground crews the opportunity to experience realistic, stressful combat situations in a controlled environment to increase their combat readiness and effectiveness. (U.S. Air Force photo by Senior Airman Thomas Spangler)