Volodymyr Zelensky has demanded that Ukraine be granted full membership of the European Union. Friedrich Merz, the German chancellor, had called for the country to be given a special half-in, half-out relationship, which would mean it could participate in European summits and ministerial meetings – but not cast a vote. Mr Zelensky criticised the “associate membership” concept, branding it an “unfair” move that would leave Ukraine “voiceless”. The Ukrainian president urged the EU to commit to his country’s full entry in a letter addressed to Antonio Costa, the president of the European Council, Ursula von der Leyen, the president of...