A Team Mildenhall Airman sprays a target with a hose in the ‘charged line advancement’ event during the 2021 Fire Muster Challenge at Royal Air Force Mildenhall, England, Oct. 7, 2021. The 100th Civil Engineer Squadron held the challenge to spread the message of fire safety during Fire Prevention Week. (U.S. Air Force photo by Airman Alvaro Villagomez)