Kyiv's delegation at a meeting with allies in London this week reaffirmed the principles on which talks on ending Russia's war in Ukraine are based, including never recognising any part of Ukrainian territory as Russian,

Talks between the U.S., Ukraine and European officials to discuss ending Russia's war in Ukraine faltered as Secretary of State Marco Rubio abruptly cancelled his trip to London.

Diplomats and defense chiefs from Britain, the U.S., European nations and Ukraine are due to meet in London to push for a peace deal between Moscow and Kyiv