一场军演，三重算计！加拿大这招，把美国和欧洲都算进去了

Core Viewpoint - The situation in Greenland has become a focal point in international media, with Trump's tariff threats against European countries and Canada's strategic military involvement in Arctic exercises reflecting a complex geopolitical landscape [1][3][5]. Group 1: U.S. Tariff Policy and European Response - Trump's announcement of a 10% tariff on eight European countries, with a potential increase to 25%, has left European nations unable to effectively retaliate, as their economies heavily rely on exports to the U.S. [3] - Germany's previous military presence in Greenland aimed to counter U.S. interests but quickly retreated under tariff pressure, highlighting the economic vulnerabilities of European nations [3][5]. Group 2: Canada's Strategic Calculations - Canada’s participation in Arctic military exercises serves multiple strategic purposes, including enhancing its influence in Arctic affairs and positioning itself for future resource competition [5][7]. - By supporting Denmark, Canada aids in maintaining NATO unity and strengthens its ties with European allies, while subtly opposing U.S. unilateralism [7]. - Canada's long-term strategy focuses on establishing a military presence in Greenland to secure advantages in future Arctic resource development, contrasting with the short-sightedness of U.S. and European approaches [7].