Four A-10 Thunderbolts IIs from the 25th Fighter Squadron prepare to take off during the first sortie of Operational Readiness Exercise Beverly Bulldog 14-01 at Osan Air Base, Republic of Korea, Nov. 18, 2013. The week-long exercise tests Airmen’s abilities during a heightened state of readiness while providing combat ready forces for close air support, air strike control, forward air control-airborne, combat search and rescue, counter air and fire, and interdiction in the defense of the ROK. (U.S. Air Force photo/Staff Sgt. Emerson Nuñez)