U.S. Air Force Senior Airman Koran Brillion, a firefighter with the 379th Expeditionary Civil Engineer Squadron fire and emergency services, repositions a hose outside of a simulated burning structure during a mass casualty exercise Nov. 18, 2020, at Al Udeid Air Base, Qatar. 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)