U.S. Marine Corps Sgt. Tyler Valkanas, center, a field

U.S. Marine Corps Sgt. Tyler Valkanas, center, a field radio operator with 9th Communication (9th Comm) Battalion, I Marine Expeditionary Force Information Group, observes Marines conducting radio checks during a high-frequency exercise at Marine Corps Base Camp Pendleton, California, June 23, 2020. 9th Comm conducted the exercise to establish field expedient communications with 7th Communication Battalion located at Camp Hansen and Marine Wing Communications Squadron-18 located at Camp Foster both in Okinawa, Japan. (U.S. Marine Corps photo by Cpl. Jason Monty)