The British Army is the United Kingdom's principal land warfare force.
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Chlorine is a chemical element with symbol Cl and atomic number 17.
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The gas mask is a mask used to protect the user from inhaling airborne pollutants and toxic gases.
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Glycerol (also called glycerine or glycerin; see spelling differences) is a simple polyol (sugar alcohol) compound.
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Hexamethylenetetramine or methenamine is a heterocyclic organic compound with the formula (CH2)6N4.
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Hydrogen cyanide (HCN), sometimes called prussic acid, is an organic compound with the chemical formula HCN.
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The Hypo helmet, or British Smoke Hood (its official name), was an early British gas mask in World War I. The first use of poison gas on the Western Front was on 22 April 1915, by the Germans at Ypres, against Canadian and French colonial troops.
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The M2 gas mask was a French-made gas mask used by French, British and American forces from April 1916 to August 1918 during World War I. The M2 was fabricated in large quantities, with about 29,300,000 being made during the war.
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The mica group of sheet silicate (phyllosilicate) minerals includes several closely related materials having nearly perfect basal cleavage.
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Phosgene is the chemical compound with the formula COCl2.
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Sodium phenoxide is an organic compound with the formula NaOC6H5.
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Tear gas, formally known as a lachrymatory agent or lachrymator (from the Latin lacrima, meaning "tear"), is a chemical weapon that causes severe eye, respiratory, and skin irritation, pain, vomiting, and even blindness.
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World War I (WWI or WW1), also known as the First World War or the Great War, was a global war centered in Europe that began on 28 July 1914 and lasted until 11 November 1918.
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