Donald Trump appeared to double down on his threat to hit the US' NATO allies with tariffs if they do not agree with his acquisition of Greenland.
The president shared an AI generated image of himself leaning over The Resolute Desk to his Truth Social page which he labelled, 'The Tariff King'.
Trump threatened to slap tariffs on, 'countries that don't go along with Greenland' on Friday as he escalated his campaign to seize the mineral-rich Danish territory.
He added that the US may back out of NATO if the acquisition wasn't agreed.
Nations including France, Germany and Sweden have deployed a small number of troops to the territory in response to Trumps rhetoric in the last few days.
That mission, named Operation Arctic Endurance, was stepped up on Friday with Danish F-35 fighter jets conducting training over southeast Greenland.
A French MRTT tanker also conducted air-to-air refueling after departing its base in southern France, where it returned after completing the training.
Trump claims his fixation with acquiring the territory is a matter of US national security.
Trump posted an AI image of himself to his Truth Social on Saturday, labelling himself 'the tariff king'
Danish F-35 fighter jets and a French MRTT tanker conducted air-to-air refueling training over southeast Greenland, video from Danish Defense showed on Friday
He said: 'We need Greenland for national security very badly. If we don't have it we have a very big hole in terms of national security, especially in terms of the Golden Dome.'
The Golden Dome is a proposed multi-layer missile defense system which the president says is reliant on seizing control of Denmark's Arctic territory.
A bipartisan congressional delegation arrived for talks in Copenhagen on Friday, aimed at shoring up support for America's NATO ally.
The 11 congressmen and women held talks with Danish prime minister Mette Frederiksen and her Greenlandic counterpart Jens-Frederik Nielsen.
Senator Dick Durbin said: 'We are showing bipartisan solidarity with the people of this country and with Greenland. They've been our friends and allies for decades.
'We want them to know we appreciate that very much. And the statements being made by the president do not reflect what the American people feel.'
In addition to Durbin, the delegation included Democratic senators Chris Coons, Jeanne Shaheen and Peter Welch, as well as Republicans Lisa Murkowski and Thom Tillis.
Democrats from the House of Representatives in the delegation are Madeleine Dean, Steny Hoyer, Sara Jacobs, Sarah McBride and Gregory Meeks.
The visit follows a meeting in Washington on Wednesday at which Danish representatives said they are in 'fundamental disagreement' with Trump.
Trump claims the United States needs mineral-rich Greenland and has criticized Denmark for allegedly not doing enough to ensure its security.
The president has pursued that argument, despite strategically located Greenland being covered by NATO's security umbrella since it is part of Denmark.
The European troop deployment in Greenland for a military exercise is aimed at 'sending a signal' to 'everyone', including the US, that European countries are determined to 'defend (their) sovereignty', French armed forces minister Alice Rufo said.
'A first team of French service members is already on site and will be reinforced in the coming days with land, air and maritime assets,' French president Emmanuel Macron said on Thursday.