Soldiers from B Company, 3rd Battalion (Airborne), 509th Infantry Regiment, don their M40A1 protective masks during nuclear, biological, and chemical training at the Small Arms Complex, June 17, 2013. Qualifying with their assigned weapons while wearing the mask was the first in a group of tasks the soldiers completed, including personal and warning equipment use, decontamination procedures, mask maintenance, and completion of the mask confidence course.
Percy Jones
Taken on 17 June 2013
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