Croatia's president Stipe Mesic has warned NATO and the West that a new Balkan war is brewing. Mesic said he believes the border "between Kosovo and Serbia must be sealed" by peacekeepers in order to reduce Milosevic's control of Serbs in Kosovo. He also added that Milosevic, like former Croat strongman Franjo Tudjman, has a mentality from "the Middle Ages."