Pathfinder firefighters turn up the heat during training
Firefighters from the 422d Fire Emergency Services, check their oxygen levels during a live-fire training exercise at RAF Fairford, England, Oct. 3, 2022. Firefighters from the 422d FES, are required to complete live-fire training bi-annually to test thief overall readiness and ability to properly extinguish an aircraft fire. (U.S. Air Force photo by Staff Sgt. Eugene Oliver)