Europe is staring down the barrel of a stark new reality where the United States being the backbone of NATO – the alliance that has guaranteed the continent’s security since 1949 for almost 80 years – is no longer a given.

As some Republican lawmakers push for the US to leave NATO, questions arise about the alliance's role, history, and impact on global security. Here's what to know.

Vice President J.D. Vance and Defense Secretary Pete Hegseth fanned out to European capitals this month delivering what Hegseth characterized as a "stark" message to America's treaty allies: "Now is the time to invest [in defense], because you can't make an assumption that America's presence will last forever."

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

Could Nato soon be over – and what might replace it? - Powerful leaders have begun to publicly question the organisation’s future

Local leaders and some foreign policy experts say it is a big win for Dayton and the state Ohio to host the NATO Parliamentary Assembly in late May. This is the first Parliamentary Assembly session to be held stateside in more than two decades and comes amid strained U.

Donald Trump seems either unaware or unconcerned that Vladimir Putin’s plan is to weaken the United States too.

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

Secretary of State Marco Rubio in a Wednesday interview described the war in Ukraine as a proxy war between the United States and Russia, as he sought to explain on the Oval Office blowup last

Russian glide bombs give its air force "teeth" and it should be a wake-up call for NATO, two military analysts wrote.