Trump said he told NATO allies that if they’re not going to pay their bills, he won’t defend them.

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

Uneasiness grows over continued U.S. support for the 75-year-old alliance as Trump casts doubt on support from other members ...

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

Higher European defence budgets and a ramp-up of production by military equipment industries are necessary to secure Europe, ...

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

NATO Secretary General Mark Rutte said that some European leaders had privately set out new plans on defence spending during ...

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

The close adviser to President Donald Trump has publicly supported the United States withdrawing from the military alliance.

Elon Musk expressed support for the U.S. exiting NATO, arguing it doesn't make sense for America to finance Europe's defense.

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 ...