Senior officials from the U.S., Ukraine and several European countries plan to meet this weekend in the U.K. to try to reach common positions ahead of the planned meeting between President Trump and Russian President Vladimir Putin, three sources with knowledge of the plans tell Axios.

Why it matters: Ukraine and several NATO allies are privately concerned that Trump might agree to Putin's proposals for ending the war without taking their positions into consideration. • The idea for an in-person meeting in the U.K. came up in a conference call on Friday between U.S., Ukrainian and European officials, the third such call in as many days. • The logistics of the proposed meeting are still under discussion, including who will take part.

Driving the news: The new momentum in Ukraine talks

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