Dec 7, 2015

1st Battalion, 1st Marine Regiment infantrymen tactically move from building to building in a simulated combat zone during Exercise Steel Knight 2016 at Marine Corps Base Camp Pendleton, Calif., Dec. 4, 2015. 1st Marine Division has conducted Steel Knight for the past three years, making this the fourth iteration of the exercise. Steel Knight will test I Marine Expeditionary Force’s amphibious capabilities through realistic, scenario-driven training.

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1st Marine Division