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
Structure of the German Army own units of such type, but is supported by the units of the Cyber and Information Space Command as needed. Logistics, CBRN defense and Military Police units of the German Armed Forces fall under the Joint Support Service (Streitkräftebasis) of the Bundeswehr. Therefore, the German Army does not have its own units of such type, but is supported by the units of the Joint Support Service as needed. All medical units of the German Armed Forces fall under the Joint Medical Service of the Bundeswehr (Zentraler Sanitätsdienst der Bundeswehr). Therefore, the German Army does not have its own medical units,