European leaders issued a coordinated warning this week that rising tariff threats linked to Greenland risk pushing relations between Europe and the United States into a damaging downward cycle, after President Donald Trump announced plans to impose new trade penalties on several allied countries. The dispute has unfolded at a sensitive moment for global politics and markets, with security concerns in the Arctic, ongoing conflicts elsewhere, and fragile economic conditions shaping diplomatic decisions on both sides of the Atlantic.
The latest tensions stem from Trump’s renewed push for the United States to gain control of Greenland, a self-governing territory within the Kingdom of Denmark. Greenland occupies a strategic position between North America and Europe and holds growing importance for Arctic security, missile detection, and shipping routes. Trump has repeatedly argued that Greenland is critical to US national security. Over the weekend, he escalated his position by warning that the United States would impose a 10 per cent tariff on goods imported from eight European countries unless they accept Washington’s demands regarding the territory.
The countries named by Trump include Denmark, Finland, France, Germany, the Netherlands, Norway, Sweden, and the United Kingdom. He said the initial tariff would take effect on 1 February and could rise to 25 per cent by June. The tariffs, he wrote on social media, would remain in place until a deal is reached allowing the United States to purchase Greenland. Trump did not clarify the legal basis for such a move, though previous tariff actions have relied on emergency economic powers that are currently under review by the US Supreme Court.
The announcement prompted an unusually firm response from European governments. On Sunday, leaders from the eight affected countries issued a joint statement affirming full solidarity with Denmark and the people of Greenland. The statement said tariff threats undermine transatlantic relations and risk setting off a dangerous downward spiral. It also reaffirmed the countries’ commitment to sovereignty and territorial integrity, principles they said remain central to European security and cooperation.
The statement was released alongside comments from several national leaders. Danish Prime Minister Mette Frederiksen said Europe would not accept pressure through trade measures tied to territorial issues. In a separate message posted on social media, she said Denmark remains open to cooperation but is not seeking confrontation. She welcomed what she described as consistent support from other European countries.
The joint declaration also addressed military activity in the Arctic. It noted that a Danish-led NATO exercise, Arctic Endurance, involving allied forces, was pre-coordinated and posed no threat to any country. The exercise has taken on added attention in recent days as some European nations sent small numbers of troops to Greenland as part of routine training and security cooperation. European officials stressed that the deployments were defensive in nature and aimed at maintaining stability in the region.
Trump responded on Monday by reiterating his criticism of Denmark’s role in Greenland’s security. In a social media post, he said NATO had warned Denmark for years about what he described as a Russian threat to Greenland and claimed Denmark had failed to act. He added that the situation would now be addressed. Trump has previously said the United States would obtain Greenland either through negotiation or other means, comments that have drawn concern among European allies.
The dispute has also prompted reactions from NATO officials. Secretary General Mark Rutte said he had spoken with Trump about security in Greenland and the Arctic. Rutte said discussions would continue and confirmed plans to meet the US president at the World Economic Forum in Davos. NATO has sought to balance internal unity with differing views among its members on how to respond to Washington’s statements.
European Union institutions have also moved quickly. After emergency talks among EU ambassadors, European Council President Antonio Costa said member states agreed that tariff threats are incompatible with existing EU–US trade agreements. He said the bloc is prepared to defend itself against economic pressure. EU leaders are expected to meet later this week to discuss possible responses, including whether to revive previously approved countermeasures against US goods.
The European Parliament has signalled that it may suspend approval of a trade agreement reached with the United States last July. That deal reduced US tariffs on many European goods to 15 per cent in exchange for European investment commitments and changes intended to support American exports. Parliamentary leaders said Trump’s tariff threats over Greenland have made approval impossible for now. While the suspension does not cancel the agreement, it delays its entry into force and adds another layer of uncertainty to transatlantic trade relations.
Financial markets reacted to the escalation. European stock markets fell for a second day, reflecting concerns about renewed trade conflict between major economic partners. In the United States, the Dow Jones Industrial Average, the S&P 500, and the Nasdaq Composite all declined sharply. Asian markets were mixed, with losses in Japan and Australia while shares in China and Hong Kong posted gains. Currency markets also moved, with the euro and the pound rising against the US dollar, which recorded its steepest daily fall in weeks.
Precious metals drew increased interest during the market volatility. Gold prices rose to new highs, while silver retreated slightly after reaching record levels. Market participants often turn to such assets during periods of geopolitical tension and trade uncertainty. Analysts noted that the renewed tariff threats added to existing concerns about global growth and supply chains.
Statements from European foreign ministers underlined the firmness of the response. French Foreign Minister Jean-Noël Barrot said customs duties should not be used to force unjustified concessions. He said the European Commission has tools available if needed and stressed that France remains committed to security cooperation with the United States. Norwegian Foreign Minister Espen Barth Eide said respect for sovereignty is a core principle of international cooperation and cannot be set aside, even among close allies.
The United Kingdom also weighed in. Prime Minister Sir Keir Starmer said the threat of tariffs against allies pursuing collective security commitments was wrong. A Downing Street spokesperson said Starmer had raised the issue directly with Trump and discussed it with European leaders and NATO officials. Britain, which is no longer an EU member but remains closely tied to European security structures, has joined the joint statement backing Denmark and Greenland.
From Washington, senior US officials urged restraint. Treasury Secretary Scott Bessent said European leaders should avoid immediate retaliation and allow space for dialogue. Commerce Secretary Howard Lutnick and US Trade Representative Jamieson Greer warned that any countermeasures would be met with further US action. Greer said past trade disputes showed that outcomes worsened when retaliation escalated.
Public reaction has also been visible in Europe. Protests were held over the weekend in Copenhagen and in Nuuk, Greenland’s capital, with demonstrators opposing US takeover plans. The protests coincided with a visit to Denmark by a bipartisan delegation from the US Congress. Senator Chris Coons, who led the delegation, said Trump’s language was not constructive and stressed the importance of maintaining strong alliances.
Polling data released in recent days has shown limited public support for US control of Greenland. A survey conducted in Greenland earlier this year found that a large majority of residents opposed joining the United States. A separate poll in the United States indicated that most Americans also oppose acquiring the territory. Greenland’s representative to Washington said these views underscore the sensitivity of the issue.
Canada has also commented on the situation, given its own Arctic interests. Prime Minister Mark Carney said his government was concerned by the recent escalation and would increase investment in Arctic security and infrastructure. He said Canada believes Arctic security is best handled through cooperation within NATO.
