<h1>Trump's Greenland tariff threat uses trade coercion to press a sovereignty transfer, risking trade ties and economic stability.</h1> President Trump's threatened tariffs-starting at 10% and rising to 25%-seek to compel Denmark and other allies to negotiate transfer of semi autonomous Greenland, using trade sanctions as leverage over territorial sovereignty; European rejection and warnings of proportional retaliation risk undermining the US EU trade framework, raising import costs, slowing growth, and jeopardizing investor confidence and housing affordability objectives.