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
1917 French Army mutinies Passchendaele, with varied success but pertinently relieving pressure on the French to the south. It would not be until early-1918 when the US troops considered themselves ready to accept operational responsibilities, did French morale improve. The Allies withstood the German 1918 Spring Offensive, and held their ground until November, when the 2-3 year British naval blockade of Germany paid dividends. Starved of food, Germany collapsed on the home front. Their leadership was compelled to sue for peace, notwithstanding that hardly an Allied foot had been set on German soil. 1917 French Army mutinies The 1917 French Army mutinies took place