U.S Air Force Staff Sgt. Kevin Wiltrout, 7th Civil Engineer Squadron Fire Prevention craftsman, gives a briefing prior to a group-training exercise at Dyess Air Force Base, Texas, May 22, 2017. The briefing explained possible scenarios and hazards the firefighters may encounter if an aircraft catches fire, and how to extinguish it safely. (U.S. Air Force photo by Airman 1st Class Katherine Miller)