The director of a NATO research group told BI the crisis scenario she's most worried about at present.

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

Europe and the United States should eventually normalize relations with Russia once the fighting in Ukraine ends, NATO ...

Europe is staring down the barrel of a stark new reality where the United States being the backbone of NATO – the alliance ...

Trump said on Thursday he's "not so sure" NATO allies would come to America's defense, despite its Article 5 being invoked ...

President Donald Trump cast doubt Thursday on NATO’s commitment to defend the U.S. if attacked, despite the alliance’s ...

Asked about NATO Article 5 commitment, Trump says U.S. "not going to defend" allies that fail to meet his spending ...

“You know the biggest problem I have with NATO? I really, I mean, I know the guys very well. They’re friends of mine. But if the United States was in trouble, and we called them, we ...

President Trump has made clear the commitment of the U.S. and his commitment personally to NATO, and it has also made clear the expectation that we in Europe must do more in terms of defense ...