Marine Corps Lance Cpl. Gregory Kramers, a rifleman with 2nd Battalion, 5th Marine Regiment, 1st Marine Division (MARDIV), provides security during exercise Steel Knight 2018 at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Dec. 7, 2017. Steel Knight is an annual exercise providing effective and intense training in an expeditionary environment. ( Marine Corps

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