U.S. Marine Corps Cpl. Rayfel Gonzalez, a field artillery

U.S. Marine Corps Cpl. Rayfel Gonzalez, a field artillery cannoneer with Kilo Battery, 3rd Battalion, 11th Marines, 1st Marine Division, digs an entrenchment for an M240B machine gun during exercise Steel Knight 20 (SK20) on Marine Air-Ground Combat Center, Twentynine Palms, California, Dec. 11, 2019. SK20 increases the ability of all participants to plan, communicate and conduct operations against a capable near-peer adversary with a focus on a major combat maneuvers and sustainment. (U.S. Marine Corps photo by Cpl. Sabrina Candiaflores)