Spanish Prime Minister Pedro Sánchez has called for negotiations with Russian President Vladimir Putin to end the war in Ukraine, in comments on the sidelines of the World Economic Forum in Davos on Wednesday. “It is important that we maintain contact with Putin as well,” Sánchez said in Davos. “I strongly advocate, for example, that the French government and the German government… take the lead here,” he told broadcaster CNN. He said it would be conceivable to return to talks involving Germany, France, Russia and Ukraine, in the Normandy format established before the outbreak of the war. Th…