Why Britain would use Ajax rather than heavy tanks in Norway

Would Britain deploy heavy tanks in Arctic conditions or use lighter armour to support forces in Norway?

Ajax, not heavy main battle tanks, was expected to support Royal Marines and 3 Commando Brigade in Norway because of road and weight constraints.

A question about operating a Merkava-like tank in Arctic conditions leads to a distinction between heavy armour and the vehicles Britain expected to use in Norway. Main battle tanks would be too heavy for many of the relevant roads and were not central to the planned deployment. Ajax was the more plausible armoured support for Royal Marines and 3 Commando Brigade. The comparison shows that the best vehicle depends on theatre infrastructure, mobility, and the formation it must support. This is a 2020 force-planning assessment rather than a claim that heavy tanks can never operate in cold weather.