ANDERSEN AIR FORCE BASE, Guam -- U.S. Air Force Airmen with the 824th Base Defense Squadron and 11th Combat Air Base Squadron set up a perimeter under a U.S. Navy MH-60 Sea Hawk with Helicopter Sea Combat Squadron 25 during during fast-rope insertion training at Andersen Air Force Base on Nov. 20, 2025. The 824th BDS trains and maintains readiness for real-world operations, such as air base ground defense for the 11th Air Task Force, through small-unit tactics, advanced combat skills and austere airbase defense.