Ukrainian President Volodymyr Zelenskiy said on Tuesday he wanted to negotiate an unconditional 30-day ceasefire face-to-face with Vladimir Putin at this week's talks in Istanbul because only the Russian leader could enact such a pause.

The talks took place in the warring capitals of Moscow and Kyiv, from Washington and Riyadh, Saudi Arabia, to countries across Europe.

President Volodymyr Zelensky of Ukraine said that if President Trump attended the talks, it would put pressure Russia’s leader, Vladimir V. Putin, to meet face-to-face.