In recent days, President Donald Trump has ratcheted up his pressure campaign to acquire Greenland, the Arctic island and semi-autonomous territory of NATO ally Denmark, citing U.S. national security needs, and has not ruled out taking it by military force over the heated objections of Greenlanders and the Danes.

Follow Newsweek for live coverage of President Donald Trump's push to take control of Greenland from NATO ally Denmark.

The president was guarded in how far he’ll go to take control of the semi-autonomous Danish territory in an exclusive interview with NBC News.

The heads of state of all 27 European Union nations will meet for an "extraordinary meeting" later this week, European council president Antonio Costa said on Sunday.

Donald Trump will not be able to force Greenland to change ownership, a former top adviser to the US president has told the BBC. IBM's vice chairman Gary Cohn, who advised Trump on the economy in his first term, said "Greenland will stay Greenland" and linked the need for access to critical minerals to his former boss's plans for the territory.

President Donald Trump’s threat to tariff countries who oppose his campaign to annex Greenland has sparked outrage among global allies, with key world leaders vowing to “ uphold European sovereignty .” And it’s not only caused a storm in international waters, as Trump’s warning also prompted a new wave of criticism within his own party.

Trump wrote on Truth Social Saturday that the U.S. would implement a 10 percent tariff on goods from eight European countries amid a clash about Greenland's sovereignty.

Read more › President Trump is now claiming that one reason he is pushing to acquire Greenland is that he didn’t win the Nobel Peace Prize, according to a text message he sent to Norway’s prime minister over the weekend.

The move of aircraft to Pituffik Space Base comes amid growing tensions as the Trump administration reiterates calls to acquire Greenland.