Airman 1st Class Kyle Datu and Staff Sgt. Matt Trevizo, 99th Civil Engineering Squadron fire protection specialists, extinguish a fire during an aircraft live fire training exercise at Nellis Air Force Base, Nev., Oct. 12, 2023. Propane ignitors are built in multiple positions throughout and around the training fuselage, providing firefighters with a realistic training environment. (U.S. Air Force photo by Senior Airman Zachary Rufus)