U.S. Marine Corps machine gunners with Lima Company, Battalion Landing Team 3/6, 22nd Marine Expeditionary Unit (Special Operations Capable), conduct an M240B medium machine gun live-fire range on Camp Santiago, Puerto Rico, Dec. 8, 2025. U.S. military forces are deployed to the Caribbean in support of the U.S. Southern Command mission, Department of War-directed operations, and the president's priorities to disrupt illicit drug trafficking and protect the homeland. (U.S. Marine Corps photo)
Ben Brown, a senior consultant with Joint Computer Technologies and Training Management, instructs the Advanced Artificial Intelligence Command Course at Marine Corps Base Camp Lejeune, North Carolina, Dec. 12, 2025. The course is designed to train servicemembers in prompt engineering, creating an efficient workflow with AI tools in the military environment. (U.S. Marine Corps photo by Lance Cpl. Payton Walley)