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Explosive ordnance disposal Marines with Headquarters and Headquarters Squadron bury explosive devices during an emergency destruct training exercise at Target Island, Marine Corps Air Station Iwakuni, Japan, July 14, 2017. The EOD Marines spent the day burying explosive devices in the sands of the island and remotely detonating them from a bunker. Twenty pounds of composition 4 were used for every set of explosions throughout the exercise. (U.S Marine Corps photo by Lance Cpl. Carlos Jimenez)