ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Nicholas Reid, 28th Aircraft Maintenance Squadron instrument flight control, powers up a B-1B Lancer for an operations check after a part was replaced at Ellsworth Air Force Base, S.D., Jan. 19, 2011. Airmen from the 28th AMXS provide base warfighters with combat mission-ready aircraft to conduct worldwide operations by employing air-to-ground, precision-guided munitions against any adversary, anytime, anyplace. (U.S. Air Force photo/Senior Airman Kasey Close)