U.S. Air Force Senior Airman Kelly Bollinger, a C-17 Globemaster III aircraft loadmaster assigned to the 517th Airlift Squadron, waits for fellow aircrew members before a mission during Cope Tiger 13 at Udon Thani Royal Thai Air Force Base, Thailand, March 15, 2013. Cope Tiger is an annual multilateral aerial exercise designed to improve readiness and cooperation between U.S., Thai and Singaporean forces. (U.S. Air Force photo by 2nd Lt. Jake Bailey/Released)