Marine Sgt. Clarence Lamin (center), a Corporals Course instructor with 1st Marine Logistics Group, gives directions during Corporals Course 3-18 at Camp Pendleton, Calif., Jan. 19, 2017. Drill instills Marines to obey commands instantly and builds upon unit leadership.

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Keywords: 1, 15, 1st, archive, armed, battalion, combat, company, defence, food, forces, group, headquarters, logistics, marine, military, regiment, reportage, service, servicemen, usa