Trump advisor Kevin Hassett calls for "cooler heads to prevail" as president threatens Denmark with tariffs over Greenland acquisition deal negotiations.

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

British Prime Minister Keir Starmer has publicly broken ranks with U.S. President Donald Trump over his renewed pressure campaign for the annexation of Greenland. Trump threatened to impose a 25% tariff on the U.K. and other European allies until Denmark relents and sells the territory of Greenland—a move Starmer has labeled “completely wrong.”

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 of Greenland.

Scott Bessent's comments came a day after President Donald Trump said he would impose tariffs on European countries that reject his push to control Greenland.

President Donald Trump said in a post on Turh Social on Saturday that he would impose a 10% tariff on eight NATO countries from Feb. 1.