ELLSWORTH AIR FORCE BASE, S.D. -- A B-1B returning from a mission to Libya in support of Operation Odyssey Dawn taxis to the aircraft parking area on Ellsworth Air Force Base, S.D., March 30, 2011. This mission marked the first time the B-1 fleet launched combat sorties from the continental United States to strike targets overseas. (U.S. Air Force photo/Staff Sgt. Marc I. Lane)