Russia became the latest negotiator to abandon the Bosnian Serbs. Andrei Kozyrev, the Russian foreign minister, announced that his country would refuse to come to the aid of Bosnian Serbs if an all-out war broke out in the former Yugoslavia. Even the Serb President, Slobodan Milosevic, has warned the recalcitrant Bosnian Serbs by threatening to cut off their supplies and funding. Are the Serbs getting the point? Apparently not. They're continuing their siege of Sarajevo and their effort to drive Muslims from northeast Bosnia. "The Bosnian Serbs think they will somehow wiggle out of this just like they've wiggled out of every other ultimatum," says TIME's Central Europe Bureau Chief James Graff.