51st SFS
Senior Airman Nicol Hadnot, 51st Security Forces Squadron patrolman, watches for intruders during an exercise at Osan Air Base Jan. 31, 2012. Security forces patrolmen are charged with defending Airmen and base assets from terrorist activity. The Airmen are participating in a peninsula-wide operational readiness exercise, Beverly Bulldog 12-01, held to train U.S. forces throughout South Korea. (U.S. Air Force photo/Staff Sgt. Stefanie Torres)