The German-Soviet Nonaggression Pact was an agreement between Nazi Germany and the Soviet Union. In the pact, both sides agreed that they would not go to war with each other, nor would they support any nation that attacked either of them. The secret protocol of the German-Soviet Nonaggression Pact dealt with the division of Europe between the two nations. As a result of the agreement, Germany would receive the western part of Poland, following Hitler's invasion, and the Soviet Union would gain the eastern part of Poland. The Soviet Union would also gain the Baltic states of Lithuania, Estonia, and Latvia.
Shortly following the agreement, Germany invade Poland with the knowledge that the Soviet Union would not intervene. This caused Britain and France, who had proclaimed they would defend Poland, to declare war against Germany. This sparked World War II. After only approximately two years, Hitler would violate the German-Soviet Nonaggression Pact and invade the Soviet Union.