Until U.S. President Donald Trump’s recent comments pushed it into public view, Greenland was widely regarded as a geopolitical footnote: immense, frozen, sparsely inhabited, and far from the centre of global power politics. Yet in strategic terms it sits at the hinge of the 21st?century Arctic contest. As climate change opens northern sea routes and unlocks previously inaccessible energy reserves, the region is shifting from a frozen buffer zone to a theatre of competition between Washington, Moscow, and Beijing. Russia already views the…