Video by Cpl. Earik Barton Player Embed Code: Download Embed Share B-Roll: U.S. Marine with 3rd Bn., 4th Marines, conduct patrol base training operations during Arctic Edge 25 Arctic Edge Aug. 18, 2025 | 4:17 U.S. Marines with Kilo Company, 3rd Battalion, 4th Marine Regiment, 1st Marine Division, conduct patrol base training operations during ARCTIC EDGE 2025 (AE25) at Joint Base Elmendorf-Richardson, Alaska, Aug. 16-18, 2025. Patrol base trainings allows Marines to train on a multitude of different scenarios, such as ambushes, raids, or reconnaissance patrols. AE25 is a NORAD and U.S. Northern Command-led homeland defense exercise designed to improve readiness, demonstrate capabilities, and enhance Joint and Allied Force interoperability in the Arctic. (U.S. Marine Corps video by Cpl. Earik Barton)