Soldiers from the 40th Division undergo gas mask training at Camp Kearny, Linda Vista, California during World War I. This photograph, taken on April 29, 1918 by Lt. Jackson, , shows the soldiers in full protective gear. The image was censored and released by on April 30, 1918.

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Size: 9179px × 6298px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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