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

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.

Britain is discussing with NATO allies how to enhance Arctic security against Russia and China. Transport Secretary Heidi Alexander said Sunday that these talks are routine and not a response to U.S.

Fresh from a dramatic military operation in Venezuela, Donald Trump is now turning his attention north — toward Greenland. His rhetoric has alarmed European capitals and rattled NATO allies. Denmark faces an unthinkable question: if Washington moves aggressively,

Prime Minister Mette Frederiksen said that if Donald Trump were to attack the Danish island of Greenland that would mean the end of the NATO alliance.

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.

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."

Republican Sen. Thom Tillis (N.C.) and Democratic Sen. Jeanne Shaheen (N.H.), the co-chairs of the bipartisan Senate NATO Observer Group, issued a statement Tuesday urging the Trump administration to “respect the sovereignty and the territorial integrity” of Denmark,