President Donald Trump’s renewed push to bring Greenland under US control has rattled Europe and reignited fears of American expansionism after Washington’s aggressive moves in Venezuela. Framing the Arctic island as vital to US national security, Trump has refused to rule out the use of force, alarming NATO allies and drawing sharp warnings from European leaders. Greenland’s strategic location, missile-warning infrastructure, and vast untapped mineral wealth have thrust it into the center of a growing power struggle involving the US, Russia, and China. As Trump’s rhetoric hardens, critics warn the bid threatens to upend international law, fracture NATO unity, and reshape the balance of power in the Arctic.