Why was the League of Nations so inefficient at keeping peace in Europe?

The League of Nations was established in 1920 and is similar to the United Nations where a group of countries came together in order to establish peace and make decision about the world together. Over time, more and more countries come on board the League of Nations. The League of Nations was established in 1920 because that followed the end of World War I when a large number of countries were involved in war.

However, it would only be about twenty years later before the next World War would take place. The reason that the League of Nations could not keep peace in Europe is because they did not have their own military. They had to rely on the armed forces of the European countries.

For about the first ten years after World War I, the League of Nations was fairly successful in its European peace keeping efforts, but primarily only with resolving conflicts between small nations. It was inefficient at keeping peace with larger nations because it had no real authority, no military force, and no economic resources to implement decisions. The League also lacked support from powerful nations.

For example, the United States adopted isolationism and did not join the League. Germany joined in 1926 but withdrew in 1933 when Hitler rose to power. The Soviet Union joined late but Japan and Italy withdrew.