Serious question: how will a carrier group fare in arctic ice during winter?

Climate change has made this a receding problem, which is one reason why Greenland is suddenly hot property. In another ten years, you may be able to sail the perimeter of Greenland fully unobstructed all year round.

An answer: they can take it, but when winter comes, holding it will be difficult.

Holding it from whom? Nobody in NATO actually has the stomach for the kind of losses they’d take.