A mock F-15 aircraft burns as first responders and firefighters arrive on scene to conduct firefighting training on Royal Air Force Lakenheath, England, Sept. 17, 2015. The airmen are firefighters assigned to the 48th Civil Engineer Squadron Fire Department, and are required to conduct training twice a year to maintain their skills and keep their qualifications current. U.S. Air Force photo by Senior Airman Trevor T. McBride