The document discusses the failures of the League of Nations (LoN) in disarmament and maintaining peace in the 1920s and 1930s, particularly highlighting the inability to manage Hitler's expansionist goals. It notes key events such as the World Disarmament Conference and Italy's aggression towards Abyssinia, emphasizing how the major powers prioritized their national interests over collective action. This environment contributed to Hitler's military rearmament and the eventual establishment of the Rome-Berlin Axis, illustrating the LoN's ineffectiveness in curbing aggression.