U.S. Air Force Capt. Clayton Adams, a KC-135 Stratotanker

U.S. Air Force Capt. Clayton Adams, a KC-135 Stratotanker aircraft pilot with the 465th Air Refueling Squadron, performs preflight checks before an aerial refueling mission in support of exercise Rim of the Pacific (RIMPAC) 2012 at Joint Base Pearl Harbor-Hickam, Hawaii, July 23, 2012. RIMPAC is a U.S. Pacific Command-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation and security on the world's oceans. (U.S. Air Force photo by Staff Sgt. Jason Robertson)