The League of Nations

At The treaty of Versailles, Woodrow Wilson, president of the USA gave 14 points to settle world peace, even though some of his points were rejected, the most important one which consisted of creating a 'League of Nations' was accepted. The League was formed on 1920, the aims of the League where to maintain peace and security in the world by countries acting together to stop war, this was called collective security. Some of the world powers …

…after bombarding Greece for being guilty of the murder of one of Italy's generals (accusation made by Mussolini); he retreated, although the Conference of Ambassadors decided to support Italy and made Greece pay up. This made the League look weak. To conclude the League in its starting years was more successful then a failure, however it started decaying over time and it basically disappeared in 1940 when Britain was the only country left in the League.