Poison Overview Poison gasses were one of the few weapons during WW1 that could be used within trench warfare. The killing capacity of gas was limited — only 4% of combat deaths were due to gas … Will Irwin, correspondent From the New York Tribune, April 25, 26, 27, 1915. It worked in several ways. The gases ranged from disabling chemicals, such as tear gas and the severe mustard gas, to lethal agents like phosgene and chlorine.This chemical warfare was a major component of the first global war and first total war of the 20th century. -- There is no doubt that the action which has … When poison gas first came along it was a very popular choice and most believed it would be a weapon to change the tides of war. It could travel in the gas cloud or mist, attack, the wind is used to carry the gas to the enemy lines. Germany (taking a cue from France) first used poison gas on a large scale against Allied troops manning trenches near Ypres, Belgium, on April 22, 1915. Poison gas is a substance used in WWI that is scentless and sightless. The German Army dispersed chlorine gas over Allied lines at Ypres on 22 April 1915. The use of poison gas in World War I was a major military innovation. This chemical warfare was a major component of the first global war and first total war of the 20th century. Poison gas was initially released from cylinders, but this required ideal weather conditions and could be very risky. The gas warfare of World War One was so horrific that it has rarely been used since. It was useful as a surprise weapon. After the 1925 Geneva Protocol prohibited chemical weapons their use further diminished. WWI Document Archive > 1915 Documents > The Use of Poison Gas. The gases used ranged from disabling chemicals such as tear gas and the more severe, mustard gas to killing agents like phosgene. By the end of the war the Germans produced the most poison gas with 68,000 tons, the French second with approximately 36,000 tons and the British produced approximately 25,000 tons. Considered uncivilised prior to World War One, the development and use of poison gas was necessitated by the requirement of wartime armies to find new ways of overcoming the stalemate of unexpected trench warfare. About three percent of gas casualties were fatal, but hundreds of thousands … The picture to the left depicts how they could be used in trench warfare. The use of poison gas in World War I was a major military innovation. In the first British gas attack, at Loos in September 1915, much of the gas was blown back into the faces of the British troops. North of France, April 24. From 1916, gas was employed in shells instead, which allowed attacks from a … The killing capacity of gas was limited — only 3% of combat deaths were due to gas … 22 April, 1915. The Germans used chlorine gas on the French-Algerian troops, killing large numbers of soldiers and causing the rest to rush into panicked retreat, as they had no protection against its choking effects. Poison gas was successful for the Germans as it killed many of the French soldiers in the Second Battle of Gas was first used by the Germans in 1915 at the Second Battle of Ypres on the 22 April .In the beginning it was discharged from cylinders , and this made the wind direction a crucial consideration, this and the trench system made it difficult to predicate whose lines would be affected and in many cases the … The first time that poison gas had been used effectively in war was on April 22, 1915 at the battle of Ypres. Furthermore, who used the most poison gas in ww1? In the interwar period the French and Spanish used it in Morocco and the Bolsheviks used it against rebels. 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