In 1939, the Soviet Union and Germany signed the Molotov–Ribbentrop Pact. While publicly purporting to be a nonaggression pact, it secretly divided the territories of Eastern Europe between Nazi Germany and the Soviet Union. The pact contained a secret additional protocol containing agreements about carving up Poland and about spheres of influence in eastern Europe, including Finland, Estonia, Latvia, Lithuania, and Bessarabia. The Soviet Union gained territories in eastern Poland and in the Baltic States of Estonia, Latvia, and Lithuania.