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Sgt. Rodney Williams, 25, a chemical, biological, radiological and nuclear (CBRN) defense specialist from Norfolk, Va., leads Marines in a series of exercises at the 33 area gas chamber. Marines from 9th Communication Battalion, 1st Intelligence Battalion and 1st Radio Battalion took part in an annual confidence mask training exercise to learn how to use their gas mask properly and what to do when faced with a chemical attack. (U.S. Marine Corps photo by Lance Cpl. John M. McCall)

By: United States Marine Corps Official Page Copyright © All Rights Reserved

Taken: April 4, 2010
Uploaded: April 4, 2010

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