85% of Greenlanders don't want their island to become part of the U.S., poll finds
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The US taking over Greenland would violate international law and the territory's right to self-determination. The US can achieve its security objectives through existing partnerships with Greenland and Denmark, while remaining on good terms with NATO allies.
Trump knows acquiring Greenland is vital for US national security and economic interests as it would prevent Chinese and Russian influence in the region. It's completely reasonable for him to threaten tariffs on Denmark or other means to make this happen.