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U.S. Marine Corps photo by Cpl. John M. Raufmann/Released 110208-M-0000C-004.jpg
Feb 8, 2011
Marines with the 22nd Marine Expeditionary Unit Command Element stand in line to sign a roster before entering a chemical biological radiological nuclear mask confidence course chamber aboard Camp Lejeune, N.C., Feb. 8, 2011. The Marines and sailors of the 22nd MEU are in the early stages of their pre-deployment training program, which is a series of progressively complex exercises designed to train and test the MEU's ability to operate as a cohesive and effective fighting force.
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