A top European leader is issuing a dramatic warning to the United States, escalating tensions over Greenland and raising serious questions about the future of the NATO alliance under President Donald Trump.
Mette Frederiksen, Denmark’s prime minister, said Monday that NATO itself would effectively come to an end if the United States were to carry out any military action against Greenland, a self-governing territory within the Kingdom of Denmark.
In an interview with Danish broadcaster TV2, Frederiksen responded to renewed remarks from Donald Trump about Greenland’s growing strategic importance to American national security.
“I believe we must take the American president seriously when he says he wants Greenland,” Frederiksen said, according to a translated report. “But if the United States chooses to attack another NATO country militarily, then everything stops — including NATO and the security order that has existed since the end of the Second World War.”
Trump Highlights Security Risks in the Arctic
President Trump has repeatedly pointed to Greenland’s location, natural resources, and rising foreign activity in the Arctic as reasons the United States must take a stronger role in the region.
Those comments gained new attention this weekend following a major Trump-era military operation that resulted in the capture of Venezuelan leader Nicolás Maduro and his wife, who were brought to New York to face criminal charges. The operation has fueled speculation about how aggressively the administration may act to protect U.S. interests abroad.
Asked by reporters whether Greenland could become a future flashpoint, Trump stressed the island’s importance to national defense.
“Greenland is extremely strategic right now,” the president said. “You have Russian ships, Chinese ships — they’re all over the area. We need Greenland for national security, and Denmark is not capable of handling that responsibility.”
Denmark Pushes Back on Annexation Talk
Frederiksen strongly rejected any suggestion that Greenland could be taken over by the United States, arguing that such a move would violate international law.
“It makes absolutely no sense to talk about any necessity for the United States to take over Greenland,” she said in an earlier statement. “There is no legal basis for annexing one of the three countries of the Kingdom of Denmark.”
She emphasized that Greenland is protected under NATO and pointed out that Denmark already allows the United States broad military access to the territory through existing defense agreements.
“I therefore urge the United States to stop threatening a historically close ally,” Frederiksen said, “and to respect the clear position of a people who have repeatedly stated they are not for sale.”
A Broader Clash Over America First
The standoff highlights a widening divide between European political leaders and President Trump’s America First approach to foreign policy. As competition with China and Russia intensifies — particularly in the Arctic — Greenland is rapidly becoming a focal point in the global struggle for security, resources, and influence.
For Trump supporters, the issue underscores his willingness to speak bluntly about national defense and challenge long-standing assumptions. For European leaders, it represents a red line they insist cannot be crossed.