World War I 1919 Paris Peace Conference. The formation of the League of Nations was intended to prevent another world war, but for various reasons failed to do so. The rise of the Nazi Party and their central role in World War II led to a focus on how the Treaty of Versailles affected Germany, but the peace treaties in addition to various secret agreements during the war also transformed borders throughout Europe, Asia and the Middle East, with repercussions that still echo to this day. The term "First World War" was first used in September 1914 by German biologist and philosopher Ernst
French Army in World War I 1870, and later struggled with France over mineral-rich Morocco. Another cause of World War I was growing militarism which led to an arms race between the powers. As a result of the arms race, all European powers were ready for war and had time tables that would send millions of reserves into combat in a matter of days. France was bound by treaty to defend Russia. Austria–Hungary had declared war on Serbia due to the Black Hand's assassination of Archduke Ferdinand, which acted as the immediate cause of the war. France was brought into the war by a German declaration