Airmen 1st Class Kevin Carmel (Left), and Julius Smith, 36th Expeditionary Aircraft Maintenance Squadron crew chiefs deployed from Minot Air Force Base, N.D., remove chalks from the tires of a B-52 Stratofortress during a preflight check at Andersen Air Force Base, Guam, April 2, 2013. A new rotation of aircrews, maintenance personnel and aircraft arrived to Guam March 31 to replace the 96th Expeditionary Bomb Squadron in support of U.S. Pacific Command’s continuous bomber presence mission. (U.S. Air Force photo by Senior Airman Benjamin Wiseman/Released)