Chemical weapons in World War I volatile oily liquid. It was introduced as a vesicant by Germany in July 1917 prior to the Third Battle of Ypres. The Germans marked their shells yellow for mustard gas and green for chlorine and phosgene; hence they called the new gas "Yellow Cross". It was known to the British as "HS" ("Hun Stuff"), and the French called it "Yperite" (named after Ypres). Mustard gas is not an effective killing agent (though in high enough doses it is fatal) but can be used to harass and disable the enemy and pollute the battlefield. Delivered in artillery shells, mustard gas was
Type 94 Disinfecting Vehicle and Type 94 Gas Scattering Vehicle versions. The liquid dissemination chemical vehicle trailer or tracked mobile disinfecting anti-chemical agents vehicle trailer that were towed, were the same used with the Type 94 versions. Type 94 Disinfecting Vehicle and Type 94 Gas Scattering Vehicle The Type 94 Disinfecting Vehicle and Type 94 Gas Scattering Vehicle was a variant of the Type 94 tankette adapted to chemical warfare by the Imperial Japanese Army. The Type 94 Disinfecting Vehicle and Type 94 Gas Scattering Vehicle were configured as an independent mobile liquid dissemination chemical vehicle with respective mobile disinfecting anti-chemical agents vehicle for support to Japanese chemical infantry units