Buy Greenland from the Kingdom of Denmark, And here's why.

Once upon a time, The United States tried to purchase Greenland from the Kingdom of Denmark, Denmark sadly declined our reasonable offer.
1)We'll first off the main reason we needed it then was to scan for incoming nuclear weapons during the cold war (Which of course could still prove useful against Putin's reign).
2) The Kingdom of Denmark spends more money on Greenland than it receives, Therefore it would be another fine reason Denmark would agree.
3)You should also make a deal with Denmark that they may of course mine for resources with us if that is why they're holding on to their large territory.
Of course Greenland is getting more independent by the minute, But we could make it even more independent by making it a self-governing territory much like Puerto Rico. I could explain mor