Serbian President Aleksandar Vucic . File photoBELGRADE, Jul 31The Serbian leadership calls on the Kosovo Albanian authorities for peace, but in the event of aggressive actions against the Serbs in Kosovo, Belgrade will win, President Aleksandar Vucic said. Earlier, he said that, according to his information, the police of the self-proclaimed Kosovo on the night of August 1 will begin an operation in the north of the region and block entry to citizens with personal documents issued by the Serbian authorities, a campaign will also begin to re-register cars to the numbers of the «Republic of Kosovo». On Saturday, Vučić held conversations with Kosovo Serb political representatives and the international community.