+Gas warfare involves using [chemical weapons](/wiki/Chemical_Weapons) to incapacitate or kill. These silent, insidious agents caused widespread terror and suffering, notably during [World War I](/wiki/World_War_I), leading to international efforts for their prohibition.
+## See also
+- [Biological Warfare](/wiki/Biological_Warfare)
+- [War Crime](/wiki/War_Crime)
+- [International Law](/wiki/International_Law)