France, March 6 -- European Union leaders were gathered for emergency talks in Brussels on Thursday, as French President Emmanuel Macron's proposal to extend France's nuclear umbrella to its European allies gained momentum, amid growing concerns about future US support for Ukraine.

The summit, which brought together leaders from all 27 EU nations, comes just days after US President Donald Trump met with Ukrainian President Volodymyr Zelensky, who also attended the Brussels gathering.

"During all this period, and last week, you stayed with us... these are not just words, we feel it," Zelensky told European leaders, expressing gratitude that Ukrainians "are not alone" in their fight against Russian aggression.

Baltic nations and Poland w...