World War I, both the Allies and Central Powers deployed noxious gasses to incapacitate the enemy or at least strike fear into their hearts. After early failed efforts by the French and German armies to use tear gas and other irritants in battle, the first successful gas attack was launched by the Germans against the British at the Second Battle of Ypres on April 22, 1915.In the Early 20th century ,the world’s military powers worried that future wars would be decided by chemistry as much as artillery, so they signed a pact at the Hague Convention of 1899 to ban the use of poison-laden projectiles. Do you think that the war has now changed to what we consume ?
