The Roof is on Fire Air Force fire protection specialists extinguish a fire during structural fire training at Nellis Air Force Base, Nev., Sept. 18, 2023. The training tests firefighters’ skills and evaluates their teamwork. SHARE: Download: Full Size (1.08 MB) Tags: training, Air Force, Nevada Credit: Air Force Senior Airman Zachary Rufus VIRIN: 230918-F-LY743-1079Y.JPG Photo Gallery