The president has discussed possibly favoring members of the alliance that spend a set percentage of their GDP on defense, ...

The president signaled that he would consider abandoning a key part of the NATO security pact if members don’t spend more on defense.

Possible change in U.S. engagement with NATO comes as Trump is pressuring Ukraine to come to negotiating table to end war ...

In the event of ‘Atlantic decoupling’, European democracies might find themselves in chaotic, divisive conditions ...

Italian Prime Minister Giorgia Meloni has suggested NATO's Article 5 protection could be extended to cover Ukraine even if it ...

European Union leaders on Friday downplayed skepticism from U.S. President Donald Trump about solidarity among NATO members.

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

European leaders have vowed to rearm the continent at historic emergency talks held after the United States threatened to rip ...

Military alliance members already had trouble trusting each other with classified information. It’s just got worse.