Denmark’s prime minister says Washington is approaching a “red line” in the Arctic, warning that any U.S. military action involving Greenland would have serious consequences for NATO and the global security order.
Prime Minister Mette Frederiksen said Monday that Greenland, which is part of the Kingdom of Denmark and covered by NATO’s collective defense, must not be subjected to military pressure. She said that if the United States were to take military action against another NATO member, it would undermine the alliance and the international security framework established after World War II. Frederiksen described recent pressure from Washington as “unacceptable” and said Denmark would stand by democratic principles and international law.
Greenland’s Prime Minister, Jens-Frederik Nielsen, echoed those concerns in a social media post, rejecting what he described as threats and speculation about annexation. He said such rhetoric was inappropriate toward a population that has demonstrated stability and responsibility, adding that Greenland would not accept continued pressure or insinuations.
The statements followed comments by President Trump saying the United States needs Greenland “very badly,” remarks that renewed concern after a recent U.S. military operation in Venezuela. Nielsen said any discussions involving Greenland must take place through official diplomatic channels and in accordance with international law.
Denmark received support from European leaders, with the European Union reaffirming that national sovereignty and territorial borders are not negotiable. British Prime Minister Keir Starmer also expressed support for Denmark, saying Greenland’s future should be decided by Greenland and the Kingdom of Denmark, both of which are NATO allies.
Within Denmark, Frederiksen is facing growing political pressure ahead of elections to clarify how the country would respond if U.S. rhetoric escalated into concrete action. Some Greenlandic leaders have urged residents to remain cautious, describing the situation as part of a broader shift in Arctic geopolitics as the United States, China, and Russia compete for influence in the region.
Asked aboard Air Force One about possible action involving Greenland, President Trump declined to provide details and said he would revisit the issue in about 20 days. He claimed Greenland is surrounded by Chinese and Russian vessels and argued Denmark lacks the capacity to manage security there, while also dismissing Denmark’s current security presence on the island.