on 26 december 1991, serbia, montenegro, and the serb rebel-held territory in croatia (serb krajina) agreed that they would form a new "third yugoslavia". efforts were also made in 1991 to include bosnia and herzegovina within the federation, with negotiations between milošević, bosnia's serbian democratic party, and the bosniak proponent of union - bosnia's vice-president adil zulfikarpašić taking place on this matter. zulfikarpašić believed that bosnia could benefit from attempting to forge a union with serbia, montenegro, and krajina; and promoted a compromise between the serbs and bosniaks, in which serb krajina and bosniak sanjak from serbia would be annexed into a greater bosnia that within a union with serbia and montenegro, would secure both the unity of serbs and bosniaks. zulfikarpašić's proposition opposed any cantonization of bosnia. the bosnian serbs did not include zulfikarpašić's proposition alongside their propositions. however milosevic continued negotiations with zulfikarpašić to include bosnia within a new yugoslavia. efforts to include the whole of bosnia within a new yugoslavia effectively terminated by late 1991 as izetbegović planned to hold a referendum on independence while the bosnian serbs and bosnian croats formed autonomous territories.