Top Trump aide Stephen Miller says it's the "formal position" of the White House that Denmark's territory of Greenland "should be part of the U.S."

US President Donald Trump is considering making an offer to buy Greenland, the White House said Wednesday, despite the island's people and controlling power Denmark making clear the territory is not for sale.

Danish Prime Minister Mette Frederiksen says an American takeover of Greenland would amount to the end of the NATO military alliance.

Veteran diplomat tells CBS News Denmark "ready to cooperate" on Greenland, and he expects U.S. to abandon "anachronistic approach of colonialism" post-Trump.

Poland's prime minister is worried about the strain the United States' threat to take over Greenland is putting on NATO, he said on Friday, adding that as a loyal ally Warsaw should be honest with Washington about its concerns.

The rhetoric follows a dramatic U.S. raid in Venezuela and revives Trump’s long-standing focus on Greenland, transforming diplomatic discussions into fears of coercion. But U.S. military posture there remains unchanged.

Italian Premier Giorgia Meloni said on Friday she didn’t believe the United States would resort to military force to seize control of Greenland, urging a stronger role for NATO in the Arctic region to address U.

The U.S. needs ‌to ​own Greenland to prevent ‌Russia or China from occupying it in the future, ​President Donald Trump said on Friday. "We are going to do something on ‍Greenland whether they like it ​or not.