Naive thought, since it was “essential” that the tanks go in while the ground was frozen solid, why not light loads of bonfires to turn the lanes and surrounding area into mud?
They whole drumbeat of war was that they had to launch in February when it was cold. Are they actually useless later in the year?
Same idea as blowing up bridges: slow the approach.
If they can’t get enough fuel to the convey it grinds to a halt.
If there isn’t enough food, well the soldiers will probably take what’s available rather than go hungry.