Trump Threatens Tariffs on European NATO Members Unless They Support U.S. Pursuit of Greenland

President Donald Trump has escalated tensions with European NATO members by threatening to impose tariffs on eight countries unless they support the United States in its bid to acquire Greenland. The countries in question are Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands, and Finland.

Trump announced via his social media platform that a 10% tariff on goods from these nations would take effect on February 1, 2026. If a deal for the "Complete and Total purchase of Greenland" is not reached, the tariff will be raised to 25% on June 1, 2026. The move is framed as a necessary step to ensure national security, with Trump citing the strategic importance of Greenland’s location and its untapped mineral resources.

European leaders have swiftly condemned the tariff threat. Swedish Prime Minister Ulf Kristersson stated that his government would not yield to “blackmail,” while UK Prime Minister Keir Starmer called the measure “completely wrong.” French President Emmanuel Macron described the tariffs as “unacceptable” and emphasized that Europe would respond in a “united and coordinated manner.” European Commission President Ursula von der Leyen and President of the European Council Antonio Costa reaffirmed EU solidarity with Denmark and Greenland.

Trump’s announcement comes amid a backdrop of diplomatic efforts to resolve the standoff. Danish Foreign Minister Lars Lokke Rasmussen recently met with U.S. officials, and a working group was established to manage the dispute. Despite these efforts, fundamental differences remain. Denmark and Greenland have rejected U.S. offers to buy the territory, asserting the right to self-determination. The island’s semi-autonomous government and local leaders have also voiced strong opposition to Trump’s claims.

In parallel, several European countries have deployed military personnel to Greenland at Denmark’s request. These deployments—ranging from small units to liaison officers—signal a show of force to counter U.S. pressure. Germany, France, and Sweden have each sent 15 personnel, while Norway, Finland, and the Netherlands have dispatched two or more. The UK has sent a single officer. This coordinated military presence underscores Europe’s commitment to defending Greenland’s sovereignty.

Trump has justified the tariffs as a tool of leverage, warning that failure to comply would leave the Arctic island vulnerable to acquisition by China or Russia. He has also invoked the U.S. military base in Greenland, suggesting it could be expanded if the U.S. gains ownership of the land. Trump described the proposed Golden Dome project—a high-tech defense system—as dependent on full control of Greenland’s terrain.

Legal experts remain divided on whether Trump has the authority to enact the tariffs. While he has previously relied on the International Emergency Economic Powers Act, a pending Supreme Court ruling may challenge the legality of such actions. Alternative legal mechanisms, such as Section 122 powers, are limited in scope and duration.

The U.S. is open to negotiations with Denmark and the affected European nations. However, Trump’s history of renegotiating or abandoning trade agreements has raised concerns among European partners. His administration’s aggressive tactics have also strained ongoing discussions with Mexico and Canada about revising the North American trade agreement.

Trump’s strategy of using economic pressure to advance strategic objectives is not without precedent in U.S. foreign policy. However, the aggressive targeting of NATO allies marks a sharp escalation in the Greenland dispute. The U.S. has framed its actions as necessary for global security, while Europe insists on protecting its sovereignty and the rights of its citizens in Greenland. The coming months will test the resilience of transatlantic relations amid rising tensions and the looming shadow of retaliatory measures from Europe.