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
History of the German Army Aviation Corps History of the German Army Aviation Corps The history of the German Army Aviation Corps goes back to the time when the German Wehrmacht first began to develop helicopters. The first helicopter flight in Germany took place on 26 June 1936 with a Focke-Wulf Fw 61. The Focke-Wulf Fw 61 was, however, an experimental helicopter and only two examples were ever built. Yet, Ernst Udet, head of the Reich Air Ministry development wing, having seen the demonstration flights, became a proponent of this relatively new type of aircraft. During World War II, several types were considered to be procured for