Aviators and maintainers perform final checks on a B-1B Lancer, May 12, 2014 on the flightline at Ellsworth Air Force Base, S.D. The 28th Bomb Wing generated two B-1s in support of a round trip, non-stop training mission from Ellsworth to employ munitions on a range near Guam, demonstrating the long-range, precision strike capabilities of the aircraft. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/Released)