<P> As a consequence of the war , the Allies created the United Nations , an organization for international cooperation and diplomacy , similar to the League of Nations . Members of the United Nations agreed to outlaw wars of aggression in an attempt to avoid a third world war . The devastated great powers of Western Europe formed the European Coal and Steel Community , which later evolved into the European Common Market and ultimately into the current European Union . This effort primarily began as an attempt to avoid another war between Germany and France by economic cooperation and integration , and a common market for important natural resources . </P>
which organization was created after world war ii in an effort to ensure peace in the world
the United Nations