Read up on the Molotov-Ribbentrop Pact. They agreed to divide Poland, invaded together, and also divided the rest of eastern Europe and agreed not to attack each other. Up to the point of the Nazi breach of that pact, they had both been aggressors in WW2.
Read up on the Molotov-Ribbentrop Pact. They agreed to divide Poland, invaded together, and also divided the rest of eastern Europe and agreed not to attack each other. Up to the point of the Nazi breach of that pact, they had both been aggressors in WW2.