Ukraine president Volodymyr Zelenskiy attends a memorial service for Dmytro Kotsiubailo, nom-de-guerre ‘Da Vinci’, former volunteer and serviceman, Hero of Ukraine, who was killed in a fight against Russian troops in the frontline town of Bakhmut, amid Russia’s attack on Ukraine, in Kyiv, Ukraine March 10, 2023. REUTERS/Violeta Santos Moura