Senior Drill Instructor Staff Sgt. Tony L. Moore teaches future Marines drill movements during a pool function at Smyrna Reserve Center, Tennessee, June 10, 2017. The pool function builds physical and mental readiness within future Marines to prepare them for the rigors of Marine Corps recruit training.

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Keywords: air, america, archive, armed, army, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa