Chemical weapons and the United Kingdom army against British and Canadian soldiers near Ypres, Belgium, in 1917 and later also against the French Second Army. The name Yprite comes from its usage by the German army near the town of Ypres. The Allies did not use mustard gas until November 1917 at Cambrai, France, after the armies had captured a stockpile of German mustard-gas shells. It took the British more than a year to develop their own mustard gas weapon, with production of the chemicals centred on Avonmouth Docks. (The only option available to the British was the Despretz–Niemann–Guthrie process). This was used first in September
German Army (German Empire) German Army (German Empire) The Imperial German Army () was the name given to the combined land and air forces of the German Empire (excluding the ' maritime aviation formations of the Imperial German Navy). The term ' is also used for the modern German Army, the land component of the ". The German Army was formed after the unification of Germany under Prussian leadership in 1871 and dissolved in 1919, after the defeat of the German Empire in World War I. The states that made up the German Empire contributed their armies; within the German Confederation, formed after the