Once a vague proposal for a territorial swap gained clarity, a worried President Volodymyr Zelensky worked to rally allies before Friday’s Trump-Putin summit.

Volodymyr Zelensky said in a new interview that he believes Vladimir Putin will significantly "benefit" from his meeting with Trump.

Zelensky’s trip to the British capital comes a day after he took part in virtual meetings from Berlin with President Trump and the leaders of several European countries.