Sgt. David Bloxton, a scout sniper with 3rd Battalion, 25th Marine Regiment, searches a road for enemy combatants before practicing crossing a danger zone with the rest of his squad during Exercise Northern Strike at Camp Grayling, Mich., Aug. 11, 2018. Exercise Northern Strike is a National Guard Bureau-sponsored training exercise that unites service members from multiple branches, states and coalition countries to conduct combined ground and air combat operations. (U.S. Marine Corps photo by Cpl. Niles Lee)