Donald Trump says the U.S. needs control of Greenland and the Panama Canal "for national security." Here's why both places ...

During Trump’s first term, U.S. allies did their best to accommodate his demands, increasing their defense spending, adapting ...

The President-elect wouldn't rule out military or economic coercion Tuesday, saying the US needs to stop China. But climate ...

Greenland plays an outsized role in the daily weather experienced by billions of people and in the climate changes taking shape all over the planet.