U.S. Air Force Senior Airman Austin Bradshaw, 317th Aircraft Maintenance Squadron aerospace propulsion journeyman, sanitizes a gas mask during an exercise at Dyess Air Force Base, Texas, Nov. 7, 2018. Airmen that participated in the training learned how to properly put on mission oriented protective posture gear and how to sanitize it if their equipment becomes exposed to chemical agents. (U.S. Air Force photo by Airman 1st Class Kylee Thomas)