Sulfur mustard later also against the French Second Army. The name Yperite comes from its usage by the German army near the town of Ypres. The Allies did not use mustard agent until November 1917 at Cambrai, France, after the armies had captured a stockpile of German mustard shells. It took the British more than a year to develop their own mustard agent 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 1918 during the breaking of the Hindenburg Line. Mustard agent was dispersed
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