The mayor of Kyiv, Vitali Klitschko, has told the BBC that Ukraine may have to give up land as part of a peace deal with Russia, amid a growing pressure from President Donald Trump to accept territorial concessions.

With its strong public support of Ukraine, Europe seeks to give Zelensky some space in the face of U.S. demands while still urging compromises.

Diplomatic initiatives are multiplying to end the conflict, but significant disagreements persist among Ukrainians, Russians, Americans and Europeans regarding the conditions for a lasting peace.