The largest contiguous empire the world has ever seen. People think the Roman or Greek empire was big. The Mongul empire was much bigger in Square miles. Would've probably included all of Europe too but for a stroke of good luck on their part.
Hitler's Map of the planned “Greater German Reich”. He would have taken it all under his control as plan for the Aryan race. Part radical socialism, fascism and right wing racist. After WWI paramilitary groups began in Germany .