+Chemical warfare involves the use of toxic substances as a [Weapon](/wiki/weapon) to cause death, injury, or incapacitation. Distinct from biological or nuclear means, its deployment, especially [Poison Gas](/wiki/poison_gas), is largely prohibited by international agreements.
+## See also
+- [Biological Warfare](/wiki/biological_warfare)
+- [Disarmament](/wiki/disarmament)
+- [War Crime](/wiki/war_crime)
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