With no point of divergence before the Yugoslav Wars began in 1991, was there any realistic way for Serbia (whether under that name or Yugoslavia) to establish at least de facto control of the territories claimed under the Greater Serbia concept and hold them into the present? Follow the link for a map, but essentially, such a country would consist of our timeline's Serbia, part of Croatia, and Bosnia and Herzegovina, Macedonia, Montenegro, and Kosovo in their entirety. Much of the international community can dispute the legitimacy of the situation, but it must be as much of a political reality on the ground as the annexation of Crimea by Russia in 2014 in our timeline. If the full list of territories described earlier is simply impossible, then what would be the most Serbian nationalists could possibly achieve?
Assuming such a state is established and the Balkan Wars have essentially died down by the early 2000's, what then? Would there be any chance of normalized relations between this country and the West, or would it never be able to shake the status of rogue state and remain associated with Iran and North Korea in the public mind? How might the butterfly effect impact the wider world - especially Europe, considering the expansion of the European Union into former Warsaw Pact countries during this era?
Assuming such a state is established and the Balkan Wars have essentially died down by the early 2000's, what then? Would there be any chance of normalized relations between this country and the West, or would it never be able to shake the status of rogue state and remain associated with Iran and North Korea in the public mind? How might the butterfly effect impact the wider world - especially Europe, considering the expansion of the European Union into former Warsaw Pact countries during this era?