Trump has pledged to implement "very high" tariffs on Denmark if it does not sell Greenland to the United States, also noting that he is not opposed to using military force if necessary

Pituffik Space Base, located in the far north of Greenland since the end of the second world war, is home to 200 US military personnel and 450 other forces and contractors from allies, part of Washington’s missile early warning system as well as offering space surveillance and satellite command.