Thursday morning brought a sense of relief but also lingering anxiety across Europe, with unanswered questions about what Trump's new Greenland deal might entail.

President Trump had said there was the "framework" of a deal on Greenland after his talks with the NATO chief.

Donald Trump and Nato secretary-general Mark Rutte discussed the renegotiation of a 1951 US-Denmark pact governing the stationing of US troops in Greenland, as part of talks that led the US President to dial back his threats over the Arctic territory.

Trump has repeatedly argued that the U.S. needs Greenland for national security. This week, he seemed to confuse it with Iceland.

Some worried Greenlanders were gathering emergency supplies, with hunters "taking out their rifles" and readying them to defend against any would-be invaders, residents told NBC News.

Greenland's strategic location makes it a focal point if there were to be a nuclear conflict involving Russia, China and the United States. U.S.

Trump says U.S needs control of 'undefended' Greenland — but says he won't use force U.S. President Donald Trump delivered a speech at the World Economic Forum in Davos, Switzerland, today, expressing his desire for control of Greenland and criticizing Europe and Canada.

"They're not there for us on Iceland, that I can tell you," the president said in a remark that appeared to be about Greenland.