Senior Airman Nicholas Catling, 822d Base Defense Squadron military working dog (MWD) handler and MWD ‘IIsaac’, look for simulated explosives, July 25, 2018, at Moody Air Force Base, Ga. The ‘Safeside’ defenders evaluated their base defense tactics and procedures while performing patrols, tactical combat casualty care and countering improvised explosive devices for a mission readiness exercise. After successfully completing these events, the defenders are eligible to earn their Global Response Force status, which certifies the unit to deploy worldwide. (U.S. Air Force photo by Airman 1st Class Eugene Oliver)