President Volodymyr Zelenskyy was meeting the French, German and British leaders in London on Monday as Kyiv’s European allies try to strengthen Ukraine’s hand in thorny talks on a U.S.-backed plan to end the Russia-Ukraine war.

Prime Minister Keir Starmer was due to gather with Zelenskyy, President Emmanuel Macron and Chancellor Friedrich Merz at the British leader’s 10 Downing St. residence.

Zelenskyy said late Sunday that his talks with European leaders this week in London and Brussels will focus on security, air defense and long-term funding for Ukraine’s war effort. The leaders are working to ensure that any ceasefire is backed by solid security guarantees both from Europe and the U.S. to deter Russia from attacking again.

U.S. and Ukrainian negotiators completed three days of talk

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