A 1st Battalion, 409th Brigade Engineer Battalion observer coach/trainer tosses an M18 yellow smoke grenade to simulate a chemical attack during a dismounted live fire lane for Soldiers from 818th Maintenance Company and 826th Ordnance Company, Jan. 27, at Fort Knox.

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Size: 1357px × 1474px
Photo credit: © Nelly George / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archive, armed, defence, forces, military, reportage, servicemen, usa