Transatlantic relations, which have been established for nearly eight decades, are once again being tested by the issue of Greenland.
US President Donald Trump’s surprising threat to impose additional tariffs in order to force the acquisition of the semi-autonomous territory belonging to the Kingdom of Denmark has triggered serious tensions between Europe and Washington.

In this critical situation, a big question arises: can Europe really unite to defend Greenland amid political and economic pressure from its own long-time ally?
From the beginning, Greenland has been at the center of debate not only because of its strategic position in the Arctic, but also because of its mineral wealth and its role in global security.
The resulting tensions have placed Europe in a dilemma between maintaining long-standing alliances and upholding the principles of sovereignty and international law.
For five days of uncertainty, Europe was on edge after Trump threatened to impose additional 10% tariffs on eight European NATO members.
The threat was explicitly linked to an attempt to force a full purchase of Greenland. Trump’s statement that the tariffs would remain in place until an agreement was reached sparked widespread outrage among European leaders.
Presidents and prime ministers from various countries unanimously expressed support for Danish sovereignty and considered the move an unacceptable form of pressure.
This stance marked the beginning of a phase of political unity in Europe, which had previously been divided over US trade policies.
How Far Can Europe Go?
According to a Euronews report, shortly after the threat was made, EU ambassadors held an emergency meeting to prepare countermeasures before the tariffs were implemented.
France is pushing for the activation of the Anti-Coercion Instrument, a mechanism that allows for broad retaliation across various economic sectors.
While this instrument has never been used before, this situation is seen as different because tariffs are being used as a tool of territorial pressure against allies.
In contrast to the internal debates that occurred in 2025, member states are now demonstrating collective resolve.
Diplomats in Brussels have affirmed their readiness to bear the economic consequences to defend Greenland, Denmark, and the sovereignty of the European Union as a whole.
As part of the political response, the European Parliament decided to postpone the ratification of the EU-US trade deal indefinitely.
This decision effectively suspends the previously agreed zero-tariff benefits for American products. The move reinforces the message that economic pressure will not be met with unilateral concessions.
In parallel, a list of retaliatory measures worth tens of billions of euros has been prepared to be implemented if additional tariffs are implemented. This policy reflects a shift in Europe’s stance, leading to a more assertive and coordinated response to threats against Greenland.
Despite expressing readiness to retaliate, European leaders have emphasized that diplomacy is the primary option.
They sought a solution that would protect Greenland without triggering a broader escalation of the conflict. Statements from Berlin to Helsinki emphasized the desire to resolve the crisis through collective dialogue.
Some leaders attempted to create room for compromise by reinterpreting the United States’ actions, although these efforts yielded no immediate results. Tensions escalated when Trump reiterated his intention to take over Greenland in international forums, accompanied by an ultimatum-like statement to Europe.
The situation began to de-escalate when Trump stated he did not intend to use military force to achieve his goals. This gap was immediately exploited by European countries and NATO.
A framework agreement to improve security in Greenland and the Arctic region began to be discussed, focusing on defense cooperation without changing sovereignty.
The agreement was seen as a temporary solution that allowed all parties to save face. Trump stated that he would not pursue tariff threats or attempts to acquire Greenland, while Europe successfully defended the principles of sovereignty and regional stability.
At an emergency meeting of EU leaders in Brussels, the initially tense atmosphere calmed.
The leaders emphasized that the transatlantic relationship was too important to be sacrificed by a single, brief crisis. However, vigilance remains maintained given the potential for the Greenland issue to resurface in the future.