In any way, it's hard to see FYROM getting into some kind of war during or after her intependance:
Milosevic is claimed to have proposed to the Greek PM, Mitsotakis, a joint operation andpartition of the FYROM, but the latter refused, as Greece is dedicated to the maintainance of the current status in the Balkans, and International Law.
Bulgaria was not in a posistion to raise a war, nor has the ground to raise demands on FYROM, at least not such to justify a war.
Albania was (and is) in no position to make war.
Anyway, if something hapenned in FYROM in the early or mid- '90's it would involve either the Serbs ir the Albanians, the most propable outcome could be a NATO operation through Greece, after the FYROM agreed to accept the Greek demands for the name, flag and "minority" parlor.
In the case of the involvement of Serbia, I can see a fast overthrow of Milosevic, and a totaly different history since.
In the case of the involvement of the Albanians, I can see a totaly different developement in Kosovo, with the Albanian Kosovars getting little support from abroad.