Congress passed legislation that a president cannot unilaterally withdraw from NATO, setting up a major legal fight if Trump ...

Russia is believed to be behind dozens of hybrid attacks, like arson or sabotage, on NATO soil since the Ukraine war started.

Florida Sen. Marco Rubio is receiving a warm welcome at his confirmation hearing to become secretary of State.

Rufus Gifford, a former US ambassador to Denmark, said in a Sunday interview that the NATO alliance would be compelled to ...

Donald Trump is threatening to withdraw the United States from NATO. This raises questions about whether this is possible, ...

Russia is "not constrained by the thought of large numbers of innocent victims," Russia expert Keir Giles told Newsweek.

Polish authorities had said on Wednesday that fighter jets were scrambled after "intense long-range aviation activity" was detected from Russia.

Russia will demand Ukraine drastically cut back military ties with the NATO alliance and become a neutral state with a ...

The alliance has stepped up intelligence, surveillance and reconnaissance activities around the Baltic Sea amid concerns of ...

NATO Secretary-General Mark Rutte says the alliance is launching a new mission to protect undersea cables in the Baltic Sea ...

Trump’s demand that the Nato allies spend significantly more on defence is the opening salvo in a new era of transatlantic ...

Hundreds of Swedish troops have arrived in Latvia to join a Canadian-led multinational brigade along NATO's eastern flank.