U.S. Air Force Airmen assigned to the 388th Munitions Squadron, secure four GBU/39B precision guided munitions to a bomb rack during a training exercise held at Hill Air Force Base, Utah, July 8, 2021. The BRU-61 rack can hold four GBU-39/Bs in a single configuration, capable of destroying high-priority fixed and stationary targets from Air Force fighters and bombers. The bombs can be loaded in internal bays or on external hard-points, which increases aircraft loadout, decreases the logistical footprint, decreases collateral damage, and improves aircraft sortie generation times. (U.S. Air Force photo by Staff Sgt. Codie Trimble)