The document discusses the events leading up to World War 2 in Europe. It explains that after WWI, the Treaty of Versailles and League of Nations aimed to maintain peace but failed to stop German and Italian aggression in the 1930s. Germany rearming under Hitler threatened peace as he annexed Austria and Czechoslovakia through appeasement. Weakness of the League and appeasement encouraged further aggression until Britain changed its policy, paving the way for WWII.