260618-F-ST571-1094
U.S. Air Force Airman 1st Class Andrew Iraheta, 31st Civil Engineer Squadron HVAC/R technician, examines the internal components of a Ruggedized Environmental Control Unit during a Prime Base Engineer Emergency Force training at Aviano Air Base, Italy, June 18, 2026. Prime BEEF maintains and enhances the squadron's proficiency in the assembly, disassembly and sustainment of the small shelter system in support of expeditionary and contingency operations. (U.S. Air Force photo by Staff Sgt. Karissa Dick)