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

Europe's military heavyweights have already said that meeting President Donald Trump's potential challenge to spend up to 5% ...

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

Mark Rutte, incoming secretary general of the North Atlantic Treaty Organization (NATO), during a transition ceremony at the ...