Chemical weapons in World War I in Palestine during the Second Battle of Gaza. Russia began manufacturing chlorine gas in 1916, with phosgene being produced later in the year. Most of the manufactured gas was never used. The British Army first used mustard gas in November 1917 at Cambrai, after their armies had captured a stockpile of German mustard gas shells. It took the British more than a year to develop their own mustard gas 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
Tanks in the German Army in firepower and mobility, but the XM1 was superior in armour protection. (Today we know this was true as regards a hit by a hollow charge; but against KE-attack the Leopard 2 was almost twice as well protected as the original M1.) In September 1977 1800 Leopard 2 were ordered, and the first batch of five was delivered on 25 October 1979. The Leopard 2 was made in many variations and became very popular for export in the nineties, when the shrinking German army offered many of its redundant Leopard 2s at a reduced price. It became successful enough in