1. Signed 23rd August 1939
2. Hitler & Stalin agree not to fight each other (non-aggressive pact)
3. Secretly agree to divide Poland between them
4. Stalin joined League in 1934 but witnessed how weak it was in the Manchuria, Abyssinia and Rhineland crisis. League failed therefore Stalin doesn't think Britain and France would be effective allies if Germany attacked USSR
5. Stalin not consulted in Munich agreement: angers him
6. Reginald Drax sent by boat to talk to Stalin, no authority to decide so referring back to London whereas Hitler sent Ribbentrop, senior Nazi to him. Stalin getting more respect from Hitler than his 'allies'
7. Germany wanted to avoid a war on two fronts, beneficial to have USSR on side
8. USSR felt isolated with Britain and France and gave them time to geta army ready. Having land in Poland also gives them a buffer zone
9. Stalin did not trust Hitler and knew he would turn against him. War more likely = Stalin, own army, Hitler attacks, would respond with arms, leading to war