Air traffic controllers observe aircraft on the flight line during Operational Readiness Exercise Beverly Bulldog 14-01 at Osan Air Base, Republic of Korea, Nov. 18, 2013. Osan airmen are in the first simulated wartime contingency exercise executed in the new fiscal year that will test the base's ability to defend and execute the mission in a heightened state of readiness. (U.S. Air Force photo/Staff Sgt. Emerson Nuñez)
<br>Unit: 51st Fighter Wing Public Affairs
Staff Sgt. Emerson Nuñez
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