The only option Denmark has is negotiating a compromise. There is no military option against the USA.
The thing is - if there is a referendum, I don’t think Greenlanders would vote to join the USA, not unless the USA covers the 50% of Greenlandish budget that Denmark currently cvers. Denmark provides an unconditional annual subsidy of approximately 3.9 billion DKK ($570 million USD) AND continues with Universal Healthcarefor the Greenlanders at Danish levels AND also grants GReenland (and thereby Puerto rico) rights to representation in Congress and the Senate AND lets Greenland have an official language of Kalaallisut (Greenlandic) as the sole official language of Greenland.
If the USA allows that, the Greenlanders would have I think little to no objection to joining the USA.
Alternatively, the USA already has the rights to set up bases anywhere on the island to whatever levels - that was agreed in 1951.
“Alternatively, the USA already has the rights to set up bases anywhere on the island to whatever levels - that was agreed in 1951.”
That’s where we should have already acted.
Pay them and they will.
There are 56K Greenland residents.
Give them tax free earnings.
In fact make Greenland a TAX EXEMPT haven within the USA and every corporation will open up an office there and claim Greenland as their headquarters. Similar to companies that operate out of Bermuda.
EVERYONE has a price. We are all “puttanas” when it comes to money.
There is a third option. Just so No. No compromise, no acceptance of a deal or money.
Then let the U.S. take it by naked force, in front of the world's eyes. And let the U.S. lose further credibility as a moral leader of the free world.
IOW, Denmark doesn't have to accept money. It can force the U.S. to pay in moral credibility.