I don't think any country in the north would rely on imported energy for winter survival. I think pretty much every country even in EU counts that critical enough to warrant domestic capacity.
Which is why essentially every country in Europe relies on Russia for gas supplies?
I suspect most of Northern Europe would be happier importing energy from Southern Europe or even North Africa than relying on Russia as they currently do.
I suspect most of Northern Europe would be happier importing energy from Southern Europe or even North Africa than relying on Russia as they currently do.