"In the current situation, the French and British nuclear forces are a complement to U.S. extended deterrence, but they would not constitute a viable solution in the event of an abrupt withdrawal of U.S. nuclear forces," the Washington-based Centre for Strategic & International Studies said.

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.

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