Britain's Prime Minister Keir Starmer, right, welcomes European Commission President Ursula von der Leyen to the European leaders' summit to discuss Ukraine, at Lancaster House, London, Sunday March 2,

British Prime Minister Keir Starmer rallied his European counterparts Sunday to shore up their borders and throw their full weight behind Ukraine as he announced outlines of a plan to end Russia’s war.

Prime Minister Keir Starmer and President Emmanuel Macron have been thrust to the fore by a U.S. administration that has embraced Moscow and derided Kyiv. Strikingly, their efforts are taking place outside the major institutions that have helped order Europe for decades: the EU and NATO.

European Commission President Ursula von der Leyen says Europe urgently needs to rearm and members must be given the fiscal space for a surge in defence spending. British Prime Minister Keir Starmer hosted European leaders,

Sterling could rise against the euro in the near-term if news stemming from U.K. Prime Minister Keir Starmer’s meeting with Trump this week is well received, ING said.

Sir Keir Starmer's "relations reset" with the European Union looks set to come under scrutiny in an inquiry launched by the Foreign Affairs Select Committee. The inquiry, which is calling for evidence on cross-continent relations,

Starmer could use Britain’s island identity to its advantage and turn this time of crisis into an opportunity for Britain.

Sir Keir Starmer and Emmanuel Macron spoke to “compare notes” on their work towards a possible peace in Ukraine, Downing Street said, as the EU moved to free up hundreds of billions of euros for security.

How Prime Minister Keir Starmer stepped up after Trump's brawl with Zelensky. The UK PM welcomed Zelensky to the UK with open arms, increased his support to Ukraine, and got the backing from other EU

Keir Starmer has so far managed to publicly embrace Volodymyr Zelenskyy, hugging him on the steps of Downing Street, inviting him to a major summit of EU leaders, and ramping up British support for Ukraine. | Pool photo by Toby Melville via Getty Images ...

The UK is achieving the role Brexiters said it would have - a leading voice in Europe while still outside the EU. But Keir Starmer must back his rhetoric on Russia with action.