Army Staff Sgt. Dwight Harris, a native of Ocala, Fla., assigned to Headquarters and Headquarters Detachment, 59th Signal Battalion, instructs Soldiers in a gas chamber during Nuclear Biological Chemical training on Joint Base Elmendorf-Richardson, Alaska, Thursday, 2014. The training culminated with masked Soldiers entering a sealed chamber filled with CS, then removing their protective gear to promote confidence in their equipment. CS, technically known as 0 chlorobenzalmalononitrile, is a solid white powder mixed with a dispersal agent and commonly referred to as tear gas. ( Air Force p

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Army Staff Sgt. Dwight Harris, a native of Ocala, Fla., assigned to Headquarters and Headquarters Detachment, 59th Signal Battalion, instructs Soldiers in a gas chamber during Nuclear Biological Chemical training on Joint Base Elmendorf-Richardson, Alaska, Thursday, 2014. The training culminated with masked Soldiers entering a sealed chamber filled with CS, then removing their protective gear to promote confidence in their equipment. CS, technically known as 0 chlorobenzalmalononitrile, is a solid white powder mixed with a dispersal agent and commonly referred to as tear gas. ( Air Force photo/Justin Connaher)

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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
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Keywords: air, airforce, alaska, base, biol, elmendorf-richardson, force, jber, joint, military, nbc, nuclear, states, united, usa