专家分析美国加征关税强索格陵兰岛：收割盟友延缓其霸权衰落

Group 1 - The core viewpoint of the articles highlights the significant impact of the U.S. imposing tariffs on eight European countries opposing the acquisition of Greenland, which could disrupt international political and economic order as well as NATO alliances [1][2] - The European Union is considering imposing tariffs on U.S. goods worth €93 billion as a countermeasure against the U.S. tariffs, which were initially planned but postponed to avoid a full-blown trade war [1] - A meeting among the 27 EU member states is taking place to discuss the potential reactivation of the tariff list and the use of coercive measures, with a decision expected after observing the U.S. actions on February 1 [1] Group 2 - Experts suggest that the U.S. aims to use tariffs and potential security threats to make Greenland a U.S. territory, similar to Puerto Rico, which reflects a shift towards a new "America First" globalization [2] - The current situation places Europe in a difficult position, where it may have to negotiate with the U.S. while considering economic countermeasures, such as not fulfilling investment commitments made during previous trade negotiations [2] - The articles indicate that Trump's actions may be driven by personal political motives, particularly in light of the upcoming midterm elections, as he seeks to maintain control over Congress and safeguard his interests [2]