Chemical weapons and the United Kingdom army against British and Canadian soldiers near Ypres, Belgium, in 1917 and later also against the French Second Army. The name Yprite comes from its usage by the German army near the town of Ypres. The Allies did not use mustard gas until November 1917 at Cambrai, France, after the 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
Type 312 minesweeper for the People's Liberation Army Navy. Due to its small size, this class is maintained on land and thus is in better conditions than most of other larger boats and ships in the reserve fleet. The drone can be remotely operated from more than away. Type 312 minesweeper The Chinese Type 312 class minesweeper was also known as Futi class. It was the first remote minesweeping drone, and was successfully used in the Vietnam War. Although originally designed as a minesweeping drone, the Type 312 can also be manned by a 3-man crew as a regular minesweeper. The chief designer