A U.S. Air Force B-2 Spirit bomber assigned to the 509th Bomb Wing prepares to refuel from a KC-135 Stratotanker aircraft Jan. 22, 2013, near Andersen Air Force Base, Guam. Several B-2s were deployed to Andersen to help maintain stability and security in the Pacific region. (U.S. Air Force photo by Airman 1st Class Brooke P. Doyle/Released)