China’s leader is on a three-country tour of Europe at a time when Sino-European relations are far from perfect. After stopping in France on Sunday and Monday as part of the 60th anniversary of the establishment of Franco-Chinese diplomatic relations, Xi Jinping will travel to Serbia and then to Hungary. What are the economic and strategic stakes of this highly political tour? War in UkraineThe Chinese and French presidents will first address the issue of the war in Ukraine. With China “one of Russia’s main partners”, the French president will try to encourage Beijing “to use the levers it has…