Airman Dustin Mog, 319th Civil Engineer Squadron firefighter, prepares to enter a burn simulator during a training exercise July 15, 2014, on Grand Forks Air Force Base, North Dakota. The mobile fire training trailer simulator was equipped with a kitchen and bedroom which were set on fire, testing firefighters’ ability to tame the flames, use proper safety precautions and effective communication. (U.S. Air Force photo/Senior Airman Xavier Navarro)