U.S. Air Force Staff Sgt. Ashton Norton, left, precision guided munitions crew chief and Airman 1st Class Gabriel Pearce, right, munition stockpile manager, both assigned to the 388th Munitions Squadron, prepare a GBU/39B during a training exercise held at Hill Air Force Base, Utah, July 8, 2021. The GBU/39B is an extended range all-weather, day or night 250-pound class, guided munition, which relies on the Global Positioning System to provide navigation to the target. (U.S. Air Force photo by Staff Sgt. Codie Trimble)