President Donald Trump said Wednesday that “anything less” than US control of Greenland is “unacceptable,” arguing the United States needs the territory for national security purposes, which could in turn strengthen NATO.

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.

After the meeting, Denmark's foreign minister said they're eager to work with the U.S. while respecting the "red lines of the Kingdom of Denmark."

Greenlanders get heavily subsidized by Denmark, and any future mining boom will be costly.

Trump's comments come after Greenland’s Prime Minister said they would "choose Denmark" over the United States.

The world's largest island has its own system of fjords, lakes and black-sand beaches. What to know about the size of the Danish territory.

The estimate is part of planning around Trump’s efforts to bring Greenland into the U.S. fold, with Secretary of State Marco Rubio tasked with crafting a proposal to purchase the semi-autonomous Danish territory.

The Trump administration’s recent evisceration of Venezuela’s government has leaders in Washington wondering where else they can meddle. And President Donald Trump’s eyes have wandered back to a familiar target: Greenland.