President Donald Trump arrives in Switzerland on January 21, 2026, facing some of the most strained transatlantic ties in years. At the World Economic Forum in Davos, he is slated to meet European counterparts after threatening tariffs and insisting that Denmark cede control of Greenland to the United States. The meetings come as allies debate retaliation and warn that the dispute risks spilling into NATO cohesion and trade.
Trump previewed his push in recent days, saying the United States needs Greenland for security and economic reasons and refusing to rule out military action. Asked at the White House how far he is prepared to go, he replied, “You’ll find out.” The president also posted online what he described as private messages from European leaders, including Emmanuel Macron, who wrote, “I do not understand what you are doing on Greenland.”
Davos agenda and a delayed arrival
The White House says Trump will deliver his Davos address at 8:30 a.m. ET Wednesday, then hold a series of bilateral meetings focused on security and trade. His trip was briefly delayed Tuesday night when Air Force One returned to Joint Base Andrews for what officials called a minor electrical issue. He later departed on a smaller aircraft and is expected to begin meetings shortly after landing.
Senior aides describe the Davos swing as an opportunity to lock in European backing for a U.S. posture in the Arctic that Washington argues is necessary to deter adversaries. European officials, however, say the United States already has a significant footprint through its base in northwest Greenland and through NATO’s Article 5 guarantees. The question in Switzerland is whether face-to-face talks can narrow wide gaps on sovereignty, tariffs and the rules that govern economic coercion.
Tariff threats and the EU’s retaliation calculus
Trump has vowed to levy 10% tariffs on eight European nations starting February 1, rising to 25% on June 1, unless there is a deal for a U.S. purchase of Greenland. The list targets Denmark and several large EU economies, plus the United Kingdom and Norway. The threats rattled markets and prompted emergency consultations in European capitals. Officials are weighing countermeasures that could test new tools designed to respond to economic pressure, alongside more familiar retaliation against U.S. exports.
European leaders warn that the exchange risks a spiral. Some policymakers argue for swift action to demonstrate resolve, while others prefer to leave space for negotiation in Davos. Business groups on both sides of the Atlantic are pressing for de-escalation, citing the potential for significant losses if tariffs broaden or linger into the spring. The U.S. Treasury has sought to calm investors by framing the move as leverage rather than a foregone conclusion.
Leaked texts and public messaging
Trump’s social media posts have amplified tensions. Along with the Macron message, he shared AI-style mockups depicting himself planting an American flag on Greenland next to signage that read “U.S. Territory, Est. 2026,” with senior officials at his back. European leaders criticized the imagery as provocative, though the White House insists the president is using unconventional communications to make a strategic case.
The online posts also telegraphed Trump’s meeting plans in Davos. He said several sessions would focus on Greenland and hinted at an eventual agreement with allies. Privately, European diplomats say they are looking for clarity on what the administration would accept short of a transfer of sovereignty, such as expanded basing rights, exclusive mineral concessions or a broader Arctic security framework that preserves Danish and Greenlandic control.
Denmark, Greenland and NATO red lines
Denmark and Greenland have rejected ceding the territory, stressing that any change would require decisions by Greenland’s elected leadership.
Greenland’s prime minister has warned that while conflict is unlikely, it cannot be ruled out, and urged citizens to prepare for contingencies. Copenhagen has coordinated with EU partners and sought to keep discussions anchored in international law, including the principle that borders cannot be changed by force.
NATO officials have been cautious in public, but several member states have urged de-escalation. Some allies note that Greenland’s strategic value is already integrated into alliance planning, including early warning coverage and Arctic situational awareness. Others worry that a prolonged tariff fight could erode unity at a time when the alliance is managing multiple crises. European leaders at Davos plan to balance firm defense of sovereignty with efforts to keep channels open to Washington.
