Marine Corps Sgt. James R. Darius, an Antitank Missileman enrolled in the Infantry Small Unit Leaders Course (ISULC), Advanced Infantry Training Battalion, School of Infantry-East, clears a Marine's weapon after conducting a live fire range on Camp Lejeune, March 5, 2016. ISULC is a six week training evolution that develops Infantry Sergeants' leadership, decision-making capability and proficiency. ( Marine Corps photo by SOI-East Combat Camera Cpl. Andrew Kuppers/Released)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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