Bottom row from left, President of Serbia Aleksandar Vucic, European Commission President Ursula von der Leyen, Ukraine’s President Volodymyr Zelenskyy, Greece’s Prime Minister Kyriakos Mitsotakis, European Council President Charles Michel, President of Moldova Maia Sandu, President of Montenegro Jakov Milatovic and top row from left, President of Romania Marcel Ciolacu, Prime Minister of North Macedonia Dimitar Kovacevski, Prime Minister of Croatia…