U.S. Marine Corps Cpl. Connor D. Reinsch, a low altitude

U.S. Marine Corps Cpl. Connor D. Reinsch, a low altitude air defense (LAAD) gunner assigned to Alpha Battery, 2nd LAAD Battalion maneuvers off of the firing line after firing a stinger training launch simulator as part of exercise Arctic Edge on Fort Greely, Alaska, on Mar. 14, 2018. The Marines are part of the U.S. Army Alaska-led Joint Force Land Component Command in support of Alaskan Command's exercise Arctic Edge 18 conducted under the authority of U.S. Northern Command. Arctic Edge 2018 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. (U.S. Marine Corps photo by Lance Cpl. Cody J. Ohira)