User blog comment:Octivian Marius/Entente vs Centeral/@comment-5169980-20131119202634/@comment-1789156-20131120212029

LG that isn't exactly correct. Although chemical warfare had existed thousands of years before World War I, chemical weapondry as we know it began during the war. The Germans were clearly were not the first ones to use them, as the French were the first to use chemical weapondry during the war, in the form of tear gases, ethyl bromoacetate and chloroacetone. On October 27, 1914 the Germans would use chemical warfare for the first time during the conflict, utilizing shells containing the irritant dianisidine chlorosulfonate. Xylyl bromide were also used. Chemical weapondry really took off after the Second Battle of Ypres, on April 22, 1915, when the Germans used chlorine gas and techniques invented by Fritz Haber, a German. So basically wrong on both accounts.