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
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