Marine Corps Lance Cpl. Justis Tinoco, a machine gunner with Co. C, 1st Battalion, 5th Marine Regiment, 1st Marine Division, posts security on the shore during a Scout Swimmer Course on Naval Amphibious Base Coronado, California, July 16, 2021. The Marines learned the skills necessary to plan and execute swimmer reconnaissance for a small boat raid company in preparation for deployment.

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Photo credit: © Operation 2021 / Alamy / Afripics
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Keywords: 1st, 5th, battalion, bn, corps, division, mar, mardiv, marine, marines, reg, regiment