President Donald Trump threatens tariffs on European allies at Davos World Economic Forum as tensions rise over trade deals and his demands to acquire Greenland from Denmark.

Trans-Atlantic Tensions: President Trump is expected to speak on Wednesday at the World Economic Forum in Davos, Switzerland, as his aggressive push to acquire Greenland and threats of new tariffs strain U.S.-European ties. NATO’s secretary general and the leaders of Spain and Finland will also address the gathering. Read more ›

The European Union’s top official on Tuesday called Trump’s planned new tariffs on eight of its countries over Greenland a “mistake” and questioned Trump’s trustworthiness.

Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland are casting a united front after Trump threatens tariffs.

Get the latest news and live updates on the Trump administration as House Speaker Mike Johnson marks a U.K. milestone and the Supreme Court weighs Hawaii's 'vampire' gun law.

Former NATO Secretary General and former Danish Prime Minister Anders Fogh Rasmussen warned Donald Trump that an attempt to conquer the Danish territory of Greenland would be the end of the Western alliance,

President Donald Trump has made very clear his desire to “acquire” Greenland from Denmark, no matter the damage to NATO or to the US alliance with Europe.

The president shared a private message from France's Emmanuel Macron, part of a flurry of activity as he added new fuel to his clash with Europe over the Arctic territory.