Why Trump zeroed in on Greenland and why it matters in 3 maps

Greenland rarely draws global attention. But as ice melts and great powers inch closer, the world’s largest island has become a strategic prize — one that caught President Donald Trump's eye long before most Americans were paying attention.

A semi-autonomous territory of Denmark, Greenland is home to a key U.S. military base and has become increasingly important to global security and trade as melting ice opens new shipping lanes and access to natural resources.

That shift underscores...