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
World War II also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945 (V-J Day), rather than the formal surrender of Japan, which was on 2 September 1945 that officially ended the war in Asia. A peace treaty with Japan was signed in 1951. A treaty regarding Germany's future allowed the reunification of East and West Germany to take place in 1990 and resolved most post-World War II issues. No formal peace treaty between Japan and the Soviet Union was ever signed. World War I had radically altered the political