At the heart of NATO, the world’s longest-standing security alliance, is the notion that an attack on one is an attack on all. But with many in Europe doubting a Trump-led United States will really come through for them,

President Macron has aired the idea that France's deterrence force could be used to defend of other European countries.

President Emmanuel Macron has said he will launch a strategic dialogue on extending the protection offered by France's nuclear arsenal to its European partners.

We simply must become stronger together in nuclear deterrence in Europe,' Merz, expected to become Germany's next chancellor, said in an interview as the continent seeks to respond to US President Donald Trump's upending of the transatlantic alliance.

In a televised address, President Emmanuel Macron warned that Europe needed to deal with a retreating America and a bellicose Russia.

French President Emmanuel Macron says he’s ready to start discussions on nuclear deterrence with European allies.

European leaders have welcomed France’s offer to protect them with its nuclear shield, inciting fury from the Kremlin.

PARIS — France’s defense minister said the country is sharing intelligence resources with Ukraine, after President Emmanuel Macron floated the idea of expanding the French nuclear deterrent to protect European allies. The moves here follow doubts about whether Europe can still count on the United States to help defend against Russian aggression.

European leaders showed a cautiously receptive ear to President Emmanuel Macron's proposal to debate extending the French nuclear umbrella to Europe on Thursday, though some were reluctant to draw a line under years of U.

With U.S. security commitments in question, discussions grow around France’s nuclear deterrence strategy for the continent.