Cpl. Jonathan L. Tilas, an ammunition technician with 7th Engineer Support Battalion, 1st Marine Logistics Group, prepares 7.62 mm ammunition before a machine gun range at Fort Greely, Alaska, Feb. 22, 2020, in preparation for exercise Arctic Edge 2020. Arctic Edge provides high quality and effective training in extreme cold-weather conditions which enables Marines to navigate, communicate, and sustain themselves to be effective in arctic environments. (U.S. Marine Corps photo by Lance Cpl. Jose Gonzalez)