[olau]

Not to pick on your point about Denmark, but the fact is that there has been no aggressors and thus none to defend it against. The US did try to have a sort of covert base on Greenland many years ago, and in the end it failed.

Yes, someone could invade. But they didn't.

And if they did, they probably wouldn't have been able to stay there for long enough to actually get anything out of it long term, without it turning into a war against NATO.

It is my understanding that it has been agreed a few years ago that additional monitoring should be put in place. I don't think anything else than general tech incompetence of the Danish defense forces has prevented that from happening yet.

But on the hand, as far as I understand the matter, there is still too much ice for it to become a major trade route.