Lance Cpl. Justin L. Hernandez, a low altitude air defense gunner with 2nd LAAD, Marine Air Control Group 28, 2nd Marine Aircraft Wing, prepares to engage a target with a M240-B machine gun during a machine gun range at Fort Greely, Alaska, Feb. 22, 2020, in preparation for exercise Arctic Edge 2020. Arctic Edge enables Marines to quickly identify threats in the arctic, respond promptly and effectively, and shape security to mitigate future threats. (U.S. Marine Corps photo by Lance Cpl. Jose Gonzalez)