World War II: Nazi Germany and the Soviet Union sign the Molotov–Ribbentrop Pact. In a secret protocol to the pact, Poland, Finland, Estonia, Latvia,...

World War II: Nazi Germany and the Soviet Union sign the Molotov–Ribbentrop Pact. In a secret protocol to the pact, Poland, Finland, Estonia, Latvia, Lithuania, and Romania are divided into German and Soviet "spheres of influence".