Corporal School squads compete in tug-a-war competition after completing the obstacle course aboard Marine Corps Air Station Beaufort, Beaufort SC. 21 April, 2014. Corporal's School challenges Marines and junior NCOs to push their physical limits and develop them as leaders of Marines.
U.S. Marine Corps photo by Pfc. Crystal N. Curtis/Released
Taken on 21 April 2014
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