Pfc. Matthew P. Lake, a field radio operator with 2nd Low Altitude Air Defense, Marine Air Control Group 28, 2nd Marine Aircraft Wing, hikes after 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)