Col. Mark Weatherington, 28th Bomb Wing commander, taxies a B-1through a water arch near the conclusion of his end of tour flight at Ellsworth Air Force Base, S.D., March 14, 2013. Weatherington, who has served as the 28th BW commander since May 13, 2011, will move to the Pentagon to serve as the military assistant to the Deputy Secretary of Defense, Ashton Carter. (U.S. Air Force photo by Master Sgt. John Barton/Released)