Hitler’s actions
Failure of the league of nations
allowing events such as Manchuria to occur, giving Hitler the idea that he could get away with invading Poland and taking the Sudetenland
Appeasement
Stalin believed that appeasement let Hitler get away with
The peace treaties 1919
German invasion of Poland
Nazi - Soviet Pact
enabled Hitler to attack Poland in a ‘safer’ situation
without it he would have invaded Poland and Russia would have also attacked
along with the ultimatum from Britain and France he would have been fighting a war on both fronts - what he didn’t want
buys Stalin time as he knows if Germany invades, he will be ready