Poland also denied Germany access to its eastern province of East Prussia. Poland began its provocations of Germany when Britain and France agreed to "guarantee it's borders". That was just a device to use as an excuse for Britain and France to declare war on Germany. They didn't give a shrill hoot in hell about the Soviets invading Poland from the east. We are now supposed to get indignant and self righteous about Putin invading the peaceful Ukrainian democracy and send troops to defend the poor Ukrainians against the Russian hordes. You know, for God, country and apple pie.