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 helicopters. The Mil Mi-24 fleet, however, was no longer used and subsequently sold off. In 1991, German Army Aviation Corps helicopters provided humanitarian aid to Kurdish refugees in northern Iraq. From October 1991 onwards, Sikorsky CH-53G of the German Army Aviation Corps provided the means of transport for UN weapons inspectors in Iraq. In 1993 and 1994, in Somalia, Bell UH-1D helicopters equipped with machine-guns were used for the first time in earnest as a means for self-protection. On 1 April 1994, the German Army Aviation Corps Brigade 10 was established. This brigade united all German Army Aviation Corps transport