U.S. Marine Corps Lance Cpl. Michael Reiss, light armored reconnaissance driver, and Cpl. Zachary Hughes, anti-tank missileman, with Co. B, 3d Light Armored Reconnaissance Battalion, 1st Marine Division, gear up to conduct area reconnaissance during exercise Steel Knight/Dawn Blitz (SK/DB) 21 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Dec. 5, 2020. Exercise SK/DB 21 provides effective and intense training in an expeditionary environment to ensure 1st Marine Division remains lethal, combat-ready, interoperable, and deployable on short notice. (U.S. Marine Corps photo by Sgt. Stephanie Cervantes)