U.S. Marines from around II Marine Expeditionary Force receive training on the Multi-Mission communications terminal during a Commercial Satellite Communication Operator Course at Marine Corps Base Camp Lejeune, Dec. 17, 2025. The purpose of CSOC is to provide knowledge and hands on training with commercial off-the-shelf communication equipment to modernize communication efforts in accordance with Force Design. (U.S. Marine Corps photo by Staff Sgt. Gavin Umboh) - U.S. Marines from around II Marine Expeditionary Force receive training on the Multi-Mission communications terminal during a Commercial Satellite Communication Operator Course at Marine Corps Base Camp Lejeune, Dec. 17, 2025. The purpose of CSOC is to provide knowledge and hands on training with commercial off-the-shelf communication equipment to modernize communication efforts in accordance with Force Design. (U.S. Marine Corps photo by Staff Sgt. Gavin Umboh)