U.S. Marine Corps Cpl. Dalton Sheffield, a transmission

U.S. Marine Corps Cpl. Dalton Sheffield, a transmission system operator with 1st Platoon, Bravo Company, 7th Communication Battalion, III Marine Expeditionary Force (III MEF) Information Group, assists during a radio check with the Military Auxiliary Radio System (MARS) on Camp Hansen, Okinawa, Japan, July 21, 2020. Radio checks were conducted on the MARS to ensure their operational capabilities to maintain the III MEF mission of readiness and proficiency. (U.S. Marine Corps photo by Cpl. Kealii De Los Santos)