The leaders of Britain and France are spearheading a desperate diplomatic drive to shore up Europe’s security, bolster Ukraine’s defenses and ensure the Trump administration doesn’t seek a ceasefire on terms that reward Moscow for invading its neighbor.

The gathering of European leaders took on greater significance after Trump and Zelenksy's flare up in the Oval Office, political editor Chris Mason writes.

Donald Trump has hit out at calls from European leaders for the US to provide security guarantees for any Ukraine peace deal. The US president, who has led the push for a peace deal with Russian counterpart Vladimir Putin,