Lance Cpl. Anthony Soucy, a chemical, biological, radiological and nuclear defense specialist with 3rd Marine Aircraft Wing, teaches the M50 Field Protective Mask class during the reconnaissance, surveillance and decontamination course at Marine Corps Air Station Miramar, Calif., March 25. The course is designed to train unit personnel in the procedures and equipment used in accomplishing RS&D operations in a chemical, biological, radiological or nuclear environment. ( Marine Corps photo by Lance Cpl. Clare J. McIntire/Released)

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Keywords: biological, california, cbrn, chemical, corps, jsgp, m50, marine, miramar, radiation, training