A Marine with 1st Reconnaissance Battalion, 1st Marine Division, participates in chemical, biological, radiological and nuclear training at Camp Pendleton, Calif., Sept. 22, 2016. Marines intentionally break the airtight seal the M50 Joint-Service General Purpose Mask creates during the training to expose the Marine to CS gas causing a burning and irritating sensation to the skin, eyes, nose, mouth and throat. (U.S. Marine Corps Photo by Lance Cpl. Frank Cordoba)
<dl><dd>Unit: Navy Media Content Services</dd>
<dd>DVIDS Tags: Marine; Recon; USMC; Chemical; Gas Mask; CS Gas; Gas; Biological; Gas Chamber; U.S. Marine Corps; 1st Division; CBRN; 1st Reconnaissance Battalion; 1st Marine Division; Training; Tear Gas; Radiological and Nuclear; MOPP Gear; NMCS; Mission Oriented Protective Posture Gear; DVIDS Bulk Import; M50 Joint-Service General Purpose Mask</dd></dl>
Lance Cpl. Frank Cordoba
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