Apr 24, 2018

A U.S. Marine with 1st Explosive Ordnance Disposal Company, 7th Engineer Support Battalion, 1st Marine Logistics Group, uses a pickaxe to dig a hole in which composition C-4 and trinitrotoluene (TNT) chargers will be placed during the Post-Blast Analysis Course at Camp Pendleton, Calif., April 11, 2018. To show how terrain and the placement of ordnance effects the outcome of the craters during the post-blast analysis explosive chargers are placed in different areas. This included some charges placed on the surface of the ground to show the effect of an ordnance strike as an alternative to being buried. (U.S. Marine Corps Photo by Lance Cpl. Quentarius Johnson)

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1st Marine Logistics Group