when was tear gas first used in ww1
Chemical weapons in World War I The most frequently used chemicals during World War I were tear-inducing irritants rather than fatal or disabling poisons. During World War I, the French army was the first to employ gas, using 26 mm grenades filled with tear gas (ethyl bromoacetate) in August 1914. The small quantities of gas delivered, roughly 19 cm³ per cartridge, were not even detected by the Germans. The stocks were rapidly consumed and by November a new order was placed by the French military. As bromine was scarce among the Entente allies, the active ingredient was changed to chloroacetone.[7]
Marcus Álvarez
Battle of Dunkirk The Battle of Dunkirk was a military operation that took place in Dunkirk (Dunkerque), France, during the Second World War. The battle was fought between the Allies and Nazi Germany. As part of the Battle of France on the Western Front, the Battle of Dunkirk was the defence and evacuation to Britain of British and other Allied forces in Europe from 26 May to 4 June 1940.
European theatre of World War II Axis  Germany  Italy (until 1943)  Romania (1940-1944)  Hungary (until 1945)  Bulgaria (until 1944)