There are some good reasons mentioned in this thread.
But what I haven't seen is the main reason it would never happen IMO.
If there was anything all Germans agreed on, it was the fear of a two-front war. Historically, Hitler 'only' managed to get away with it because he convinced his followers that Britain was not a threat on 1941 and that Russia (England's other hope of salvation in addition to America) could be defeated in 1941. After conquering Russia, a rejuvenated Wehrmacht would finish matters with the British.
In early 1940, the Germans are at war with Britain and France, the combination that defeated them in WWI (with Russia and America).
It would be the height of folly (which in itself is not a rare thing in Nazi Germany) to start a war against Russia with those nations already arrayed against you.
Don't forget that France was considered to have the best military force in the world at the time and already had more men and tanks.
I do not see any moves to the east while such 'formidable' opposition lies in the west.
But what I haven't seen is the main reason it would never happen IMO.
If there was anything all Germans agreed on, it was the fear of a two-front war. Historically, Hitler 'only' managed to get away with it because he convinced his followers that Britain was not a threat on 1941 and that Russia (England's other hope of salvation in addition to America) could be defeated in 1941. After conquering Russia, a rejuvenated Wehrmacht would finish matters with the British.
In early 1940, the Germans are at war with Britain and France, the combination that defeated them in WWI (with Russia and America).
It would be the height of folly (which in itself is not a rare thing in Nazi Germany) to start a war against Russia with those nations already arrayed against you.
Don't forget that France was considered to have the best military force in the world at the time and already had more men and tanks.
I do not see any moves to the east while such 'formidable' opposition lies in the west.