Article 80 of the Treaty of Versailles states "Germany acknowledges and will respect strictly the independence of Austria, within the frontiers which may be fixed in a Treaty between that State and the Principal Allied and Associated Powers; she agrees that this independence shall be inalienable, except with the consent of the Council of the League of Nations."
Without article 80 the new Wiemar Republic could Anschluss Austria in say 1922. How does this effect the rise of Hitler and the World as a Whole.