U.S. President-elect Donald Trump says he wants to make Greenland a part of the United States and does not rule out using military or economic power to get Denmark to hand it over.

Greenland’s future could be the kind of Compact of Free Association that America has with three Pacific Island states, Trump aides are telling reporters. Under these Compacts, the island nations get sovereignty, development assistance, and the right of residents to live and work in America. In return, Washington takes over defense.