General Mark Rutte will try to prove to Donald Trump in their Thursday meeting that he —and the nearly eight-decade partnership — still matter.

Trump has repeatedly expressed his contention that European countries have been taking advantage of the U.S. by not spending more on defense.

With President Trump’s clear mandate to pursue his “America first” agenda, we have the best opportunity in decades to sever ...

Indeed, it was one I carried through my next 30 years in public life—as a parliamentarian, as a minister, and as first the prime minister of Denmark and then secretary-general of NATO.

President Trump on Thursday expressed confidence the United States would annex Greenland, even suggesting the head of the NATO alliance could be a key player in facilitating the acquisition.

The head of the North Atlantic Treaty Organization says if the Russian invasion of Ukraine can be ended, relations with the Kremlin will likely be normalized.

Speeches delivered by J. D. Vance and Pete Hegseth were not just verbal lashings of America’s allies but a wholesale ...

If Trump pulled the US out of the alliance, the European allies would no longer follow Washington’s lead on foreign policy.

The former NATO chief warns Europe needs to "shoulder the burden of securing peace" on the continent and called for nations ...

Trump has repeatedly criticized Europe's defense spending and previously threatened to leave NATO if allies didn't pay more.

The Trump administration is continuing to hold high-stakes talks to help bring an end to the Russia-Ukraine war.

Elsewhere, the head of NATO warns that Russia is executing a “coordinated campaign to destabilize our societies and discourage us from supporting Ukraine,” the head of the European Commission ...