Trump’s Greenland Tariff Ultimatum Rattles Markets and Allies
Trump links new tariffs on eight European allies to US demand to buy Greenland
Euro slips, EU weighs retaliation as NATO partners warn of “dangerous downward spiral”
Tariff threat ties trade to Greenland sale
LONDON/BRUSSELS, Jan 18, 2026 — World markets are bracing for another political shock on Monday after President Donald Trump threatened fresh tariffs on eight European nations unless Washington is allowed to buy Greenland, reviving fears of a full-blown transatlantic trade war.
Under the plan, a 10% levy on all goods from Denmark, Norway, Sweden, France, Germany, the Netherlands, Finland and Britain would take effect on 1 February, rising to 25% on 1 June if no deal is struck for what the White House has called the “complete and total” purchase of Greenland. The threat, delivered on Truth Social and amplified over the weekend, sent the euro to a seven-week low and drove investors back toward safe-haven assets.
“The U.S.-EU trade war is back on,” said Tina Fordham, geopolitical strategist and founder of Fordham Global Foresight. “This time, the trigger is something most investors never thought they’d have to model: the forced acquisition of Greenland.”
Europe cries blackmail as protests flare
In Copenhagen and Nuuk, thousands of demonstrators marched on Saturday under banners reading “Greenland is not for sale” and “Hands off Kalaallit Nunaat,” capping what local officials described as the biggest protests in Greenland’s history.
“We will not let ourselves be blackmailed,” Sweden’s Prime Minister Ulf Kristersson reportedly told Nordic media, echoing a hardening line across the region.
French President Emmanuel Macron called the move “unacceptable,” while other EU leaders privately used words such as extortion to describe Trump’s tactics.
The eight targeted countries — all NATO allies — issued a joint statement backing Denmark and Greenland and warning that the threatened U.S. measures “undermine transatlantic relations and carry the risk of a dangerous downward spiral.” EU ambassadors were summoned to an emergency meeting in Brussels on Sunday, where officials discussed whether to freeze work on a U.S. trade deal agreed in principle last July.
“Be in no doubt, the EU will retaliate if these tariffs materialise,” Ireland’s foreign minister said in Dublin, underscoring the bloc’s determination to answer in kind.
Markets test their nerves
For now, investors are wary rather than outright panicked. Major European equity indices, including Germany’s DAX and London’s FTSE 100, remain near record highs after gains of more than 3% since the start of the year, comfortably ahead of the S&P 500’s 1.3% rise.
“Hopes that the tariff situation had calmed down for this year have been dashed,” said Holger Schmieding, chief economist at Berenberg. “We find ourselves in the same situation as last spring.”
The euro ended Friday around $1.16, already soft after hitting its lowest level since late November. Traders said Asian dealing on Monday was likely to bring further euro weakness and renewed demand for the dollar, gold and the Swiss franc.
Even so, some strategists cautioned against assuming a repeat of last April’s “Liberation Day” shock, when an earlier round of Trump tariffs sent volatility spiking across asset classes.
“For European markets it will be a small setback, but not something comparable to the Liberation Day reaction,” Schmieding said.
Defence shares have been an unexpected winner. European defence stocks have jumped almost 15% this month, helped by rising geopolitical tension and earlier U.S. moves, including the seizure of Venezuela’s Nicolás Maduro, that have sharpened focus on Arctic security and on sea lanes near Greenland.
A minerals-rich island at the center of a power play
Greenland, an autonomous Arctic territory under Danish sovereignty, has long been prized in Washington for its strategic location and minerals-rich subsoil. The United States already operates major facilities there under a 1951 defence agreement, but Trump has repeatedly argued that only outright U.S. control can safeguard what he calls a vital national security asset.
According to Danish officials, the president has privately mused about using “any means necessary” to secure the island, including what one senior figure said was a reference to “conquering Greenland,” a phrase that drew sharp condemnation in Copenhagen.
In Nuuk, Greenland’s leadership has been just as blunt. Polls show Greenlanders overwhelmingly oppose joining the United States, and Prime Minister Jens-Frederik Nielsen has said that, if forced to choose, the island would “stand with Denmark.”
“This isn’t about trade; it’s about our identity and our land,” said a 22-year-old protester in Nuuk, wrapped in a Greenlandic flag. “You cannot put a price tag on a people.”
Brussels sharpens its tools
Behind the scenes, EU officials are working on responses that go well beyond the usual tit-for-tat tariffs. Brussels is considering a package of up to €108 billion in retaliatory duties on U.S. goods, alongside the possible use of a new “anti‑coercion instrument” designed to push back against economic pressure from major powers.
“Europe has to show that coercion does not pay,” said one senior EU diplomat involved in the talks. “If we fold on Greenland, what stops the next demand?”
At stake is more than headline GDP. Early estimates suggest the proposed tariffs could shave 0.1 to 0.3 percentage points off growth in the UK and Germany if the dispute drags on through the year. Carmakers, aerospace suppliers and luxury goods exporters are seen as especially exposed, though detailed sector-by-sector modelling is still limited.
For NATO, the spectacle of the United States threatening economic punishment against eight allies over a territorial push in the Arctic cuts against the alliance’s founding logic. Former officials warn that the episode could accelerate a quiet rethinking of security ties in several European capitals.
Washington pushback, investor fatigue
Trump’s move has stirred unease in Washington as well. A bipartisan congressional delegation visiting Greenland this month signalled support for Danish and Greenlandic officials, stressing that U.S. security interests in the Arctic do not depend on owning the island.
“There is no need, or desire, for a costly acquisition or hostile military takeover of Greenland,” one senator said, in a thinly veiled rebuke to the White House’s rhetoric.
Lawmakers from both parties are already drafting measures that could limit the president’s tariff powers, though it is unclear how far such proposals will go.
For markets, the broader concern is whether investors have simply grown used to rolling political shocks. The World Economic Forum’s latest risk survey ranked economic confrontation between states as the top global worry, yet asset prices have often shrugged off what once would have been unthinkable developments.
“Investors have built up a kind of immunity to shock,” Fordham said. “They assume Trump won’t actually do everything he threatens, or that, even if he does, central banks and fiscal policy will cushion the blow.”
That complacency will be tested in the coming days. If Washington and Brussels misjudge one another, an island of ice and rare earths could yet trigger the most serious rupture in transatlantic relations in decades — and leave investors asking what, if anything, is still off the table.
