"Ireland's Finance Minister Simon Harris warned that Donald Trump's latest tariff threats could have a "destabilising effect [which] could potentially be enormous" as EU ministers arrived for Eurogroup talks in Brussels on Monday. "It's President Trump who in recent days has decided to threaten Europe with additional tariffs, ones that have a very significant destabilising effect," he told reporters. "The destabilising effect could potentially be enormous. The cascading effect could be very, very significant. So now is the time for cool heads. We have worked in good faith with the US administration to put a trade agreement in place." In a US media interview on Monday, Trump said he would '100%' follow through on his warning of a new 10 per cent levy on Denmark and seven other European countries; Norway, Sweden, France, Germany, the UK, the Netherlands and Finland. He also said 'no comment' when asked if he would take Greenland by force. Earlier, Trump said the tariff would be "until a Deal is reached for the Complete and Total purchase of Greenland" - and tariffs would increase to 25 per cent in June if no deal was made. Those countries affected said on Sunday that Trump's actions "undermine transatlantic relations and risk a dangerous downward spiral", adding that their joint Greenland exercises "pose(s) no threat to anyone." Following Trump's pledge to 'take control' of the territory, NATO countries sent a handful of troops to Greenland - including 15 from France, 13 from Germany and one each from the UK and Netherlands - leading to media outlets questioning and joking about the nature of the commitment. Some analysts suggested the intention was to 'reassure' the president about Arctic security, while others claimed it was to 'deter' him. The White House insisted it wouldn't change Trump's mind. Trump has insisted he needed Greenland - an autonomous Danish territory - for 'security reasons', and the ongoing row has also raised issues about Denmark's own difficult relationship and past treatment of its former colony. "