European Union capitals are preparing substantial trade retaliation measures against the United States after President Donald Trump announced a plan to impose tariffs on eight European countries that opposed his bid to assert control over Greenland.

Mr Trump said he would impose a ten per cent tariff on imports from Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland beginning on February 1, rising to twenty-five per cent on June 1 unless a negotiated resolution is reached over Greenland—a semi-autonomous territory of the Kingdom of Denmark—framing the move as justified on national security grounds.

The threatened levies have triggered emergency discussions among EU leaders and ambassadors in Brussels and prompted a rare united rebuke from European capitals, warning that tariff threats jeopardise transatlantic relations and could trigger a dangerous downward spiral in diplomatic and economic engagement across the Atlantic.

In a strongly worded joint statement, the eight governments asserted that their deployment of troops to Greenland for a NATO exercise was aimed at regional security and posed no threat to the United States, reinforcing their commitment to sovereignty, collective defence and NATO obligations.

In response, the EU is considering activating its anti-coercion instrument—a powerful trade policy tool designed to counter economic pressure by third countries—which could permit restrictive measures on access to the EU market for US companies and other punitive steps if necessary.

European Commission President Ursula von der Leyen has emphasised the need to safeguard EU interests while keeping diplomatic channels open, and several member states are debating reviving a previously agreed package of retaliatory tariffs targeting approximately ninety-three billion euros’ worth of US goods should negotiations deteriorate.

French President Emmanuel Macron has urged fellow EU leaders to adopt robust responses, including deploying the anti-coercion mechanism, though some diplomats remain cautious about immediate escalation.

British Prime Minister Keir Starmer privately communicated to Mr Trump that tariff threats against allies engaged in collective security efforts were “wrong,” reiterating strong support for Danish sovereignty over Greenland.

The intensifying dispute has already put the proposed EU-US trade agreement, which envisioned reciprocal tariffs of fifteen per cent, on hold, with European leaders indicating that approval of any deal cannot proceed amid the current crisis, heightening uncertainty over the future of transatlantic trade relations.