He made the announcement a short while ago on Truth Social - we've taken a closer look at what he said.
Which countries has Trump targeted?
Listed by Trump are: "Denmark, Norway, Sweden, France, Germany, The United Kingdom, The Netherlands, and Finland"
A look at the numbers:
From 1 February 2026, the countries listed above will be charged a "a 10% Tariff on any and all goods sent to the United States of America", Trump writes
On June 1, 2026, the Tariff will be increased to 25%, he adds
These new taxes will "be due and payable until such time as a Deal is reached for the Complete and Total purchase of Greenland"
What is Trump's reasoning?
At the start of his social media post, Trump says "it is time for Denmark to give back - World Peace is at stake!"
He says this is because China and Russia "want Greenland" but no one other than the US "can play in this game"
"This is a very dangerous situation for the Safety, Security, and Survival of our Planet," Trump writes, and accuses the countries mentioned as having "put a level of risk in play that is not tenable or sustainable"
So, the president says, strong measures must be taken to "protect Global Peace and Security"
Trump references the "Golden Dome" defence system, which he says can "can only work at its maximum potential and efficiency... if this Land is included in it
