The legacy of the league of nations was that it provided aid to war victims. it served as a model for the un. all the nations of the world joined. the united states served as the leader nation.

The correct answer is It served as a model for the UN. The League of Nations was formed as an international organization that was supposed to keep peace between countries all over the world. However, due to the power structure and lack of military forces, the UN failed to live up to this idea during the 1930's and 1940's. Despite the failure, this concept of countries working together to keep international peace lived on and resulted in the creation of the United Nations, which still exists today.