NATO Secretary-General Mark Rutte warned the United States and Europe on Wednesday against any temptation to "go it alone" on ...

President Donald Trump has repeatedly threatened to leave the NATO alliance should member states fail to increase defensive ...

NATO Secretary-General Mark Rutte has warned Russia that the alliance would always stand by Poland or any other ally and that ...

Sweden sent its Gripen jets to a NATO air defense mission in Poland, shifting from only conducting missions over its own ...

Ukraine’s European allies say now is not the time for lifting sanctions on Russia, after Moscow said it would only agree to a ...

It’s a new day in Europe. Gone are the halcyon years of unshakeable American commitment to Europe’s defense against Russia.

If Washington doesn't restore its credibility as an ally to Europe, it might find itself alone to face its next security ...

NATO seemingly walked back comments from its chief that suggested four U.S. soldiers who went missing while training in ...

European efforts to create security arrangements for Ukraine are shifting from sending troops to other alternatives as they ...

NATO plans to ask European allies and Canada to increase their stocks of weaponry and equipment by about 30% in the next few ...

NBC News joined a NATO flotilla as it sailed the icy sea hunting Russian saboteurs accused of targeting undersea cables.