A B-1B Lancer assigned to the 34th Bomb Squadron, Ellsworth Air Force Base, S.D., takes off during Red Flag 17-1 on Nellis Air Force Base, Nev., Jan 27, 2017. Red Flag is an exercise at Nellis AFB that provides aircrews an opportunity to experience realistic, stressful combat situations in a controlled environment to increase mission capability. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)