ROK SOF Exercise
Staff Sgt. John Gavin, center, a 51st Security Forces Squadron fire team leader, issues instructions to disarm simulated opposing forces during a Beverly Herd 16-01 training scenario May 11, 2016, at Osan Air Base, South Korea. The weeklong exercise prepares the 51st Fighter Wing with scenarios like chemical, biological, radioactive, and nuclear response, active shooter and opposing forces. (U.S. Air Force photo/Senior Airman Dillian Bamman)