Senior drill instructor Sgt. Chasitie Chambers corrects Rct. Phyenisite McAllister, Platoon 4008, Company N, 4th Recruit Training Battalion, for her attitude Dec. 16, 2013, on Parris Island, S.C. Recruits must learn quickly that the rules of recruit training are strictly enforced, and disrespecting supervisors is not tolerated. (Caitlin Brink/U.S. Marine Corps)

Our staff-selected photos of the week of the Marine Corps in action.

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