Base preps for BM 14-02 challenges
Concertina wire sits in the bed of a truck, waiting to be used as a barrier during Operational Readiness Exercise Beverly Midnight 14-02 at Osan Air Base, Republic of Korea, Feb. 9, 2014. During exercises and war-time contingency operations, c-wire is placed strategically around the base. (U.S. Air Force photo/Senior Airman Siuta B. Ika)