Yesterday, after Greenland’s prime minister, Jens-Frederik Nielsen, vowed to cast his lot with Denmark over the United States, Trump said that he didn’t “know anything about” Nielsen but that such a choice would be a “big problem for him.”

President Donald Trump warns China and Russia could seek influence in Greenland as Danish leaders push back on U.S. takeover, warning it would "end" NATO.

Trump has said acquiring Greenland is a national security priority, and that the U.S. must own the island to prevent Russia or China from taking it. The shortest route from Europe to North America runs via Greenland, making it important for the U.S. ballistic missile early-warning system.

We didn’t manage to change the American position,' the Danish foreign minister said after a meeting to discuss Trump's bid to acquire Greenland.

Denmark’s foreign minister said on Wednesday that a “fundamental disagreement” with U.S. President Donald Trump over the future of Greenland remained unresolved after high-level talks in Washington, even as Denmark and NATO allies moved to increase their military presence in the Arctic territory amid rising tensions.

The Danes say the deployment of aircraft, ships and soldiers is part of an ongoing effort to better protect the island and the Arctic.

Trump’s ongoing threats to acquire Greenland by anymeans necessary have led to strong division within his own party and anger across Europe.

The U.S. and Denmark remain at odds over Greenland's future, Denmark's foreign minister said Wednesday following a tense White House meeting.