European NATO leaders have issued a joint statement that “Greenland belongs to its people” and it is for the Arctic island and Denmark only to decide on its future, after President Donald Trump’s administration reiterated its wish to take control of it.
The statement said that NATO and its allies had increased its activities and investment to make the Arctic a safe place and that Denmark and Greenland were part of that alliance.
So, it doesn’t change your point, but “legal property” isn’t really the right word for an entity that makes up it’s own laws, and can ignore the laws of everywhere else. I’d stick with “territory”, because it’s about their local monopoly on the use of force, and mutual recognition by other sovereign powers.