when did the british first use gas in ww1
Chemical weapons in World War I The first use of gas by the British was at the Battle of Loos, 25 September 1915, but the attempt was a disaster. Chlorine, codenamed Red Star, was the agent to be used (140 tons arrayed in 5,100 cylinders), and the attack was dependent on a favorable wind. However, on this occasion the wind proved fickle, and the gas either lingered in no man's land or, in places, blew back on the British trenches.[8] This debacle was compounded when the gas could not be released from all the British canisters because the wrong turning keys were sent with them. Subsequent retaliatory German shelling hit some of those unused full cylinders, releasing more gas among the British troops.[27] Exacerbating the situation were the primitive flannel gas masks distributed to the British. The masks got hot, and the small eye-pieces misted over, reducing visibility. Some of the troops lifted the masks to get some fresh air, causing them to be gassed.[28]