U.S. Air Force Airmen assigned to the 56th Civil Engineer Squadron worked together to establish an operational training site during a Prime Base Engineer Emergency Force exercise at Luke Air Force Base, Arizona, June 18, 2026. Airmen across 13 career fields collaborated under realistic field conditions using on-hand resources to foster the fundamental warfighting skills necessary to maintain precision and lethality in austere environments. (U.S. Air Force photos by Airman 1st Class Rebecca Wagner & Senior Airman Albert Morel)