U.S. Air Force Staff Sgt. John Medina, 8th Civil Engineer Squadron Explosive Ordinance Disposal team leader, renders a mock explosive remnence of war safe during Exercise Beverly Pack 18-1 at Kunsan Air Base, Republic of Korea, Oct. 12, 2017. The week long exercise tested the base’s ability to deter, defend and defeat threats while completing the required mission during contingency operations. (U.S. Air Force photo by Staff Sgt. Victoria H. Taylor)