[Caipirabob]

The tracks break the ice up. If the ice is to deep to break all the way through, the tracks still rough it up enough to make it easy enough to drive on.

Problem is, that most tanks are also heavy enough to destroy the types of roads they have out there. Guess they'll worry about that later. Or not...

[Zhang Fei]

Problem is, that most tanks are also heavy enough to destroy the types of roads they have out there. Guess they'll worry about that later. Or not...

Fully-loaded 18-wheelers weigh about the same amount as a light tank, about 30 tons or so. I think the real problem is that tank treads are made of steel and that is what does the damage, in combination with the weight. For 18-wheelers to do this kind of damage, the tires would have to be made of steel.