President Donald Trump affirmed he would "100%" follow through on his threat to impose tariffs on European countries opposing his demand to take control of Greenland. The statement, made in a Truth Social post early Tuesday morning, comes as European allies have rallied around Greenland's sovereignty, with the EU vowing to protect its interests.

Trump's initial threat of tariffs targeted goods arriving in the U.S. from the UK and seven other NATO-allied countries. He declined on Monday to rule out the use of force in pursuing his aim to acquire Greenland.

Kaja Kallas, the EU's foreign policy chief, stated that the bloc has "no interest to pick a fight, but we will hold our ground," signaling a firm stance against the proposed tariffs.

Denmark's foreign minister emphasized that the U.S. president cannot threaten his way to ownership of the semi-autonomous Danish territory. UK Foreign Secretary Yvette Cooper reiterated the UK's position that the future of Greenland is for "Greenlanders and for the Danes alone" to decide.

The dispute stems from Trump's earlier interest in purchasing Greenland, an idea that was rebuffed by Denmark. The renewed threat of tariffs indicates a continued pursuit of this objective, despite widespread opposition.

Trump also stated he had a "very good telephone call" with NATO Secretary General Mark Rutte, and agreed to a meeting "of various parties" in Switzerland this week. The agenda of this meeting was not immediately clear, but it is expected that the issue of Greenland and the proposed tariffs will be discussed.