U.S. Air Force Airman 1st Class Devin Martin, a tactical systems operator with the 25th Intelligence Squadron, is rinsed of simulated chemical agents during an annual anti-terrorism/force protection exercise at Hurlburt Field, Florida, Aug. 19, 2020. Anti-terrorism/force protection exercises are conducted to further strengthen and train emergency response personnel to be prepared to respond in a real-world attack. Participants were permitted to take off their masks during designated portions of the exercise out of safety concerns that surpassed the concern of transmitting coronavirus disease 2019. (U.S. Air Force photo by Senior Airman Dennis Spain)