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 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