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  1. Chemical weapons in World War I. A French gas attack on German trenches in Flanders, Belgium (1917). The use of toxic chemicals as weapons dates back thousands of years, but the first large-scale use of chemical weapons was during World War I. [1] [2] They were primarily used to demoralize, injure, and kill entrenched defenders, against whom ...

  2. May 12, 2015 · April 22. The German military launches the first large-scale use of chemical weapons in war at Ypres, Belgium. Nearly 170 metric tons of chlorine gas in 5,730 cylinders are buried along a four-mile stretch of the front. In the end more than 1,100 people are killed by the attack and 7,000 are injured. September 25.

  3. chemical weapon, any of several chemical compounds, usually toxic agents, that are intended to kill, injure, or incapacitate enemy personnel.In modern warfare, chemical weapons were first used in World War I (1914–18), during which gas warfare inflicted more than one million of the casualties suffered by combatants in that conflict and killed an estimated 90,000.

    • Barry R. Schneider
    • How were chemical weapons used in WW1?1
    • How were chemical weapons used in WW1?2
    • How were chemical weapons used in WW1?3
    • How were chemical weapons used in WW1?4
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  5. May 17, 2021 · In the Vietnam War, the United States used the chemical weapons napalm and Agent Orange to terrible effect. The current ban on chemical weapons was signed into international law by two conventions ...

    • Dave Roos
    • 3 min
  6. Apr 6, 2017 · Over the course of the war — which lasted from July 28, 1914, to Nov. 11, 1918 — about 3,000 chemicals were investigated for military use, and 50 toxic agents were deployed on battlefields ...

  7. The most notorious chemical weapon of the war was mustard gas, a severe irritant which caused chemical burns on the skin, the eyes and in the airways. Though not as deadly as other compounds, mustard gas probably had more effect as an anti-personnel weapon. Gas masks could be used to negate the effects of phosgene or chlorine, but mustard gas ...

  8. Jun 27, 2017 · British troops blinded by tear gas during the Battle of Estaires, 1918. Often referred to as the “Chemists War,” World War I saw the rise of chemical weapons being used on the battlefield. It all began with the French Army, who used tear gas in the form of small grenades. These small grenades didn’t hold much gas, and were largely ...

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