U.S. Air Force Senior Airman Desmond Ford, a 509th Security Forces Squadron member, guards a B-2 Spirit during pre-takeoff inspections during Exercise Global Thunder 17 (GT17) at Whiteman Air Force Base, Mo., Oct. 27, 2016. GT17’s purpose was to test the personnel readiness to confront uncertainty and ensuring they maintain a safe, secure, effective and ready strategic deterrent force.