But Denmark could deny access. Formal agreements are important. You generally don’t leave this stuff up to chance or ambiguity if you don’t have to.
> The US has closed the bases because they make no sense with modern military and satellites.
I’m confused by this. What good do satellites do? So you can watch an enemy armada sail by? There is more importance especially if/when these northern sea routes begin to have interdiction and further early warning systems available. I think the military knows why it needs this stuff.