Marines with Company D, 3rd Assault Amphibian Battalion, guide an amphibious assault vehicle into position during Exercise Steel Knight at Marine Corps Air Ground Combat Center Twentynine Palms, California, Dec. 9, 2015. Steel Knight is a 1st Marine Division led exercise, which enables the Marines and sailors to operate in a realistic environment to develop skill sets necessary to maintain a fully capable Marine Air Ground Task Force.
<br>Unit: Defense Media Activity - Marines
Sgt. Eric Keenan
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