A 1918 photograph taken on the Italian Front showing a gas shell attack and British soldiers wearing gas masks blocking the road ahead. Poisonous gas shells were developed during the First World War (1914-18). (Imperial War Museums)
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APA Style
Museums, I. W. (2025, December 16). Gas Shell Attack, WWI. World History Encyclopedia. https://www.worldhistory.org/image/21477/gas-shell-attack-wwi/
Chicago Style
Museums, Imperial War. "Gas Shell Attack, WWI." World History Encyclopedia, December 16, 2025. https://www.worldhistory.org/image/21477/gas-shell-attack-wwi/.
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Museums, Imperial War. "Gas Shell Attack, WWI." World History Encyclopedia, 16 Dec 2025, https://www.worldhistory.org/image/21477/gas-shell-attack-wwi/.