U.S. Air Force Airman 1st Class Max Walters, a firefighter with the 379th Expeditionary Civil Engineer Squadron fire and emergency services, dons his gear as he prepares to respond to a simulated fire during a mass casualty exercise at Al Udeid Air Base, Qatar, Nov. 18, 2020.The joint service event was one in a series of ongoing readiness exercises held to ensure all base defense systems are prepared to recover and respond to an attack at any time. (U.S. Air National Guard photo by Tech. Sgt. Brigette Waltermire)