Capt. Andrew Bergman, 34th Bomb Squadron copilot, boards a B-1B Lancer for a Global Power Mission at Ellsworth Air Force Base, S.D., May 12, 2014. The long range training flight validated the U.S. Air Force's ability to maintain a high state of readiness and demonstrated the capability of a bomber force that is flexible, credible and always ready to respond to a variety of threats and situations around the world. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/Released)