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Group 1 - Canada plans to send a small military force to Greenland for exercises with NATO allies in response to U.S. President Trump's threats regarding the purchase of Greenland [1] - Trump announced a 10% tariff on goods from Denmark, Norway, Sweden, France, Germany, the UK, the Netherlands, and Finland starting February 1, increasing to 25% on June 1 if an agreement on the purchase of Greenland is not reached [3] - European countries, including Norway, Sweden, France, Germany, the UK, the Netherlands, and Finland, are sending troops to participate in the "Arctic Endurance" military exercise initiated by Denmark in Greenland [4] Group 2 - The EU is considering imposing tariffs on $930 billion worth of goods imported from the U.S. as a countermeasure against Trump's tariffs [4] - European officials are preparing measures to provide leverage for negotiations with Trump during the upcoming World Economic Forum in Davos [4] - Denmark's Prime Minister stated that Europe will not be "extorted" and emphasized the need for cooperation rather than conflict [7] Group 3 - French President Macron indicated that if Trump's tariff threats are implemented, he will coordinate closely with European leaders and push for the activation of the EU's strongest trade countermeasures [8] - Germany's Vice Chancellor stated that Europe must respond clearly to U.S. threats, emphasizing that the situation has crossed a line [10] - The UK Prime Minister expressed that imposing tariffs on NATO allies is a mistake and reaffirmed the importance of collective security in the Arctic region [10] Group 4 - Criticism of Trump's tariff threats has come from various European leaders, including Italy's Prime Minister, who called it a mistake [11] - Ireland's Minister of Foreign Affairs described Trump's actions as "completely unacceptable" and regrettable [13] - The European Parliament's Renew Europe group called for the activation of the EU's countermeasures against U.S. economic intimidation, emphasizing the need for a credible deterrent [13]