Army Infantry soldiers-in-training assigned to Bravo Company, 2nd Battalion, 58th Infantry Regiment, 198th Infantry Brigade, remove their gas mask during chemical, biological, radiological and nuclear response (CBRN) training February 6, 2024 at Britten Range on Sand Hill. This exercise stresses the importance of proper fit and trust in their protective equipment. Army

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Keywords: basic, cbrn, chamber, gas, mask, osut, training