More than 500,000 casualties resulted from just the use of 100,000 tons of poison gas during World War I. The war lasted for four years beginning in mid 1914 and ending in late 1918. This huge war consisted of the Triple Alliance which included Germany, Austria-Hungary, and Italy, as well as the Triple Entente which had France, Russia, and the United Kingdom. The events that lead up to World War I have several causes, however the causes that stand out the most are the act of imperialism, millions of money spent on military, and the most underlying cause of alliances forming during the late 1800’s. European countries believed that they controlled the world due to spreading imperialism all around the world by having a plethora of colonies mostly
