A Marine, with Weapons and Field Training Battalion, activates gas inside the confidence chamber at Marine Base Camp Pendleton, Calif., April 4, 2023. The confidence chamber was filled with chlorobenzalmalononitrile, a form of tear gas, to instill confidence in recruits’ skills and their gear in the event of a chemical, biological, radiological, or nuclear attack.

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Keywords: corps, diego, marine, marines, mcrd, recruit, san, training