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
Tanks in the German Army the main battle tank in over a dozen countries worldwide, but the German Leopards never saw combat. In the German Army, the Leopard 1 MBTs have been phased out in 2003 while Leopard 1 derived vehicles are still widely used. The Leopard 2 MBTs have taken over the MBT role and first entering service in 1979. The Leopard 2 have served in the armed forces of Germany and twelve other European countries, as well as several non-European nations. More than 3,480 Leopard 2s have been manufactured. The Leopard 2 first saw combat in Kosovo with the German Army and has