First Lt. Joseph Wilkinson, 34th Bomb Squadron weapon systems officer, boards a B-1 bomber on the flightline during an operational readiness exercise at Ellsworth Air Force Base, S.D., Sept. 15, 2014. The ORE tested Ellsworth’s capability and mission readiness to execute the mission properly while in a hostile environment. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/Released)