Lance Cpl. Christopher Ploof aims down the sight of an M777A2 towed 155mm howitzer at Camp Lejeune, , Jan. 18, 2017. Ploof is attending the Artillery Training School as part of a certification course to become a gunner for the howitzer, which takes approximately two weeks to complete. Ploof is a field artillery cannoneer with 1st Battalion, 10th Marine Regiment, 2nd Marine Division.

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Keywords: air, america, archive, armed, army, atillery, camp, combat, defence, force, forces, lejeune, marines, military, navy, reportage, service, serviceman, servicemen, soldier, states, support, united, usa, usmc