Joint Base Charleston Airmen and civilians man the Emergency Operations Center April 21, 2015, at JB Charleston, S.C., during a hurricane exercise. The exercise tests the installations ability to implement disaster preparedness and recovery strategies for base personnel, facilities, vehicles and equipment. The EOC is a centralized command and control facility responsible for providing strategic decisions during disasters or emergencies. (U.S. Air Force illustration/Senior Airman Jared Trimarchi)