The document discusses key events leading up to World War 2, including Germany annexing Austria and parts of Czechoslovakia through appeasement policies by Britain and France. It also discusses the Spanish Civil War where Germany and Italy supported Franco's Nationalists against the Soviet-backed Loyalists, resulting in over 500,000 deaths. The non-aggression pact between Nazi Germany and the Soviet Union is mentioned, before the summary concludes that World War 2 officially began when Germany invaded Poland in September 1939, leading Britain and France to declare war on Germany.