British war crimes September 1915 and continued their usage for the remainder of the war. This was done in retaliation for the use of chlorine by Imperial German Army the preceding April. Following the Imperial German Army's use of poison gas at Ypres, the commander of II Corps, Lieutenant General Sir Charles Ferguson, had said of poison gas: Mustard gas was first used effectively in World War I by the German army against British and Canadian soldiers near Ypres, Belgium, in 1917 and later also against the French Second Army. The name "Yperite" comes from its usage by the German army near the
Mines in the Battle of Messines (1917) overrule the 4th Army commanders on 30 April and prevent "one of the worst tragedies of the war". Books Journals Newspapers Mines in the Battle of Messines (1917) The mines in the Battle of Messines comprised a series of underground explosive charges, secretly planted by British tunnelling units beneath the German 4th Army lines near the village of Mesen ("Messines" in French, historically used in English) in Belgian West Flanders during the First World War. The mines were detonated at the start of the Battle of Messines , creating craters. The joint explosion of the mines at Messines ranks among