Staff Sgt. Nathan Furbee, stands guard of the entry control point to the flight line as Airmen execute a simulated war tasking, working together to protect themselves and still perform a launch of two aircraft with supplies, Aug. 17, 2019, during a readiness exercise at the 179th Airlift Wing, Mansfield, Ohio. Each scenario during the three-day exercise is designed to challenge Airmen to complete Core Mission Essential Tasks in a contested, degraded and operationally limited environment. (U.S. Air National Guard photo by Tech. Sgt. Joe Harwood)