In a Truth Social post over the weekend, President Trump said he'll impose a 10% tariff on European NATO countries backing Denmark against his push to acquire Greenland. The tariff will start at 10% on Feb. 1, escalating to 25% by June 1 unless "a Deal is reached for the Complete and Total purchase of Greenland."

European leaders are weighing how to respond to Trump's intensifying effort to wrest control of Greenland from fellow NATO member Denmark.

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Nearly 3,000 leaders from over 130 countries are attending Davos this year. This includes around 400 political leaders, nearly 65 heads of state and government, and six G7 leaders.

The prime minister also tells the US president that security in the Arctic remains a priority "for all Nato allies".

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U.S. stock futures have skidded after U.S. President Donald Trump threatened to slap a 10% extra tariff on imports from eight European countries due to their opposition to his desire to take control o