Firefighters assigned to the 55th Civil Engineer Squadron extinguish a fire at the fire training pit during a Major Accident Response Exercise (MARE) at Offutt Air Force Base, Nebraska, June 6, 2026. The exercise helps emergency responders prepare for the Defenders of Freedom Air and Space Show, Aug. 8-9, 2026, by testing response procedures and coordination during a simulated aircraft emergency. (U.S. Air Force video by Kei Williams)