U.S. Air Force Tech Sgt. Rungkun Evans, 8th Fighter Wing Comptroller Squadron resource advisor, begins the cordon process during Beverly Pack 18-1 at Kunsan Air Base, Republic of Korea, Oct. 12, 2017. Beverly Pack 18-1, is a readiness exercise, testing the base’s ability to rapidly respond to requirements to defend the Korean Peninsula during contingency operations. (U.S. Air Force photo by Senior Airman Colby L. Hardin)