When Germany launched its chlorine attack at Ypres on 22 April 1915, it caught the world by surprise. It aroused world public opinion, which blamed Germany for breaching The Hague Conventions. Germany justified its actions. They stated that The Hague Conventions only discussed projectiles whose sole purpose was the diffusion of asphyxiating or deleterious gases and did not cover gases released by cylinders. The Germans also stated that France broke the conventions first. Throughout the rest of the war, Germany used chemical warfare agents in m ....