SSgt. Robert J. Porras, senior drill instructor with Lima Company, 3rd Recruit Training Battalion, sings the “Marines Hymn” after completing the Crucible with his platoon on Marine Corps Recruit Depot Parris Island, , Sept. 22, 2018. The Crucible is a 54 hour culminating event that requires recruits to work as a team and overcome challenges in order to earn the title United States Marine.

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