While the League of Nations could celebrate its successes, the League had every reason to examine its failures and where it went wrong. These failures, especially in the 1930’s, cruelly exposed the weaknesses of the League of Nations and played a part in the outbreak of World War Two in1939. During the 1920’s the failures of the League of Nations were essentially small-scale and did not threaten world peace. However they did set a marker – that the League of Nations could not solve problems if the protagonists did not ‘play the game’.