Airmen from the 51st Aircraft Maintenance Squadron prepare an A-10 Thunderbolt II for a training mission during exercise Beverly Herd 16-01 at Osan Air Base, Republic of Korea, May 10, 2016. The A-10 is a multi-role, close-air support air asset that features a 30mm cannon on the front of the aircraft. BH 16-01 is a week-long readiness exercise for the 51st Fighter Wing that includes a plethora of scenarios (U.S. Air Force photo by Tech. Sgt. Travis Edwards/Released)