The document contains sample exam questions and answers about the League of Nations. The main aims of the League were to prevent war through peaceful dispute resolution, disarmament, improving working conditions, and international cooperation. Major nations like the US and Germany were not original members - the US was isolationist and did not want to get involved in European conflicts, while Germany was excluded as punishment for starting WWI. There were multiple reasons for the League's weakness in the 1920s, including the lack of an army, but also the absence of the US and the League's slow decision-making process which allowed more powerful nations to act in their own self-interest.