Greenland Acquisition and NATO Tensions

President Trump suggested on Truth Social that the U.S. "maybe should have put NATO to the test" by invoking Article 5 to have allies defend the southern border, and has tied a purported Davos "framework" with NATO chief Mark Rutte over Greenland to explicit tariff threats (initially 10% rising to 25% on eight European NATO countries) while saying he would waive tariffs for countries that cooperate or send forces. His Greenland push — in which he publicly said he "won't use force" but pressed for U.S. access and control — has spurred emergency NATO and European meetings, sharp allied rebukes and threats of retaliation, widespread U.S. polling opposition to military action, Danish and Greenlandic insistence that sovereignty is non‑negotiable, and Pentagon officials saying they have not been ordered to plan an invasion.