The document summarizes major events from 1919-1941 that led up to World War 2, including the Treaty of Versailles which imposed harsh terms on Germany after WWI, Japan's increasing aggression in Asia, Germany's rearmament and annexation of territories under Hitler, and failed peace efforts such as the League of Nations and appeasement at the Munich Conference. The US initially took a neutral stance but grew closer to Britain through destroyers-for-bases deals and the Lend-Lease Act in preparation for potential entry into the war.