Firefighters with the 100th Civil Engineer Squadron secure a hose during a training exercise simulating a cockpit fire aboard a KC-135 Stratotanker at RAF Mildenhall, England, Oct. 22, 2019. Hands-on training is performed quarterly by the fire department to help keep firefighters familiar with the interior layout of the aircraft and proper shut-down procedures. (U.S. Air Force photo by Senior Airman Brandon Esau)