After Napoleon it should have been obvious that it's impossible to invade Russia from continental Europe, it's a massive open area with just forest and no signs of civilization, no resources. Armies waste their energy and supplies only to get killed once they actually reach the enemy.
The defender will always have the advantage. Just look at Finland who kept the red army out just by focusing on defense. Soviet had plans to invade Germany anyway so Hitler should have focused on defense rather than trying to conquer Russia, while also fighting most of Europe and the US.
Why were any jews and half jews in high ranking positions in the nazi military?
Why did so many high ranking nazi officers go to serve in the UN and NATO and NASA?
After Napoleon it should have been obvious that it's impossible to invade Russia from continental Europe, it's a massive open area with just forest and no signs of civilization, no resources. Armies waste their energy and supplies only to get killed once they actually reach the enemy.
The defender will always have the advantage. Just look at Finland who kept the red army out just by focusing on defense. Soviet had plans to invade Germany anyway so Hitler should have focused on defense rather than trying to conquer Russia, while also fighting most of Europe and the US.
These are both great questions.