Sgt. Brianna Gaudi, right, a mass communicator with

Sgt. Brianna Gaudi, right, a mass communicator with II Marine Expeditionary Force Communications Strategy and Operation, interviews Cpl. Brandon Stewart, a Low Altitude Air Defense gunner with LAAD Battalion, Alpha Battery, 2nd Marine Aircraft Wing, during Exercise Arctic Edge 18, at Fort Greely, Alaska, March 15, 2018. Arctic Edge 18 is a biennial, large-scale, joint-training exercise that prepares and tests the U.S. military’s ability to operate tactically in the extreme cold-weather conditions found in Arctic environments with more than 1500 participants from the Air Force, Army, Coast Guard, Marine Corps, and Navy utilizing the unique and expansive air and ground training areas in Alaska. Alaskan Command's exercise Arctic Edge 18 is conducted under the authority of U.S. Northern Command. (U.S. Marine Corps photo by Cpl. Sean Evans)