An airman performs maintenance on a training missile on Tyndall Air Force Base, Fla., Dec. 15, 2015. The airman is an aircraft armament member assigned to the 20th Aircraft Maintenance Squadron and deployed from Shaw Air Force Base, S.C. Airmen from Shaw came to Tyndall for the 53rd Weapons Evaluation Group’s weapons system evaluation program and the Checkered Flag 16-1 exercise. U.S. Air Force photo by Senior Airman Sergio A. Gamboa