Ypres east of the town. The first gas attack occurred against Canadian, British, and French soldiers, including both metropolitan French soldiers as well as Senegalese and Algerian tirailleurs (light infantry) from French Africa. The gas used was chlorine. Mustard gas, also called Yperite from the name of this town, was also used for the first time near Ypres, in the autumn of 1917. Of the battles, the largest, best-known, and most costly in human suffering was the Third Battle of Ypres (31 July to 6 November 1917, also known as the Battle of Passchendaele), in which the British, Canadian, ANZAC, and
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