• Trump argues U.S. control over Greenland is vital for national security, citing insufficient Danish investment and growing Chinese and Russian Arctic activity.
  • He acknowledges the move could damage ties with NATO allies.
  • The remarks reignite debate over sovereignty and Arctic strategy.

Renewed Push for Greenland

Former President Donald Trump has again asserted that Greenland should be under U.S. control, calling the island strategically vital for national security in an interview on Thursday. Trump argued that Denmark, which oversees Greenland's foreign and defense affairs, has failed to invest sufficiently in the territory's security, leaving it vulnerable as China and Russia expand their Arctic presence. "It's a matter of national security. They have to have it," Trump said, according to people familiar with his remarks. He acknowledged that such a move could strain relations with NATO partners, but insisted the U.S. must act to protect its interests.

The comments come amid heightened Arctic competition, with Russia modernizing its northern military bases and China increasingly active in research and infrastructure projects. Greenland, a self-governing territory within the Kingdom of Denmark, is home to a major U.S. space and missile warning base, but Trump has long viewed its strategic value as overlooked by Copenhagen. Efforts to buy Greenland in 2019 were met with Danish rejection, and Trump's renewed push is likely to reignite tensions.

Sovereignty and Alliance Friction

Any U.S. attempt to assert control over Greenland would be seen as a challenge to Danish sovereignty, potentially undermining NATO cohesion. The Danish government has previously ruled out a sale, and Greenlandic leaders have emphasized their desire for eventual independence. "We are not for sale," Greenland’s Prime Minister Múte Egede has said. The White House declined to comment on Trump's remarks, which are not official U.S. policy.

Analysts warn that the controversy could distract from broader Arctic cooperation. "This kind of rhetoric risks alienating key allies at a time when the U.S.-led alliance is already under strain," said a former State Department official. Without a diplomatic path, the dispute could escalate into a public spat, harming joint efforts to counter Russian and Chinese influence.

Market and Strategic Fallout

The timing of Trump's statements coincides with growing corporate interest in Greenland's mineral wealth, including rare earths and uranium. Mining companies have lobbied for clearer regulatory frameworks, but sovereignty concerns have stalled major projects. The island's strategic location along potential new Arctic shipping routes also draws interest from global powers. However, any shift in U.S. posture could complicate investment climate, as firms weigh geopolitical risk. A Danish foreign ministry spokesperson said they had not been formally approached regarding Trump's latest comments.

Correction: An earlier version of this article misstated the timing of Trump's statement. It was made on Thursday, not Friday.