Ok... except Kosovo and Serbia, which, let's be honest, have been quarreling with one another since the minority became the majority in Kosovo, which other former Yugoslavian state fought any other?
But the fall of communism were revolutions. Romania is still the same as it was before 89' territory wise, so is Albania, Bulgaria etc. And they didn't fight to be independent from USSR, at this time Gorbachev had already given them some freedom, they fought to get rid of their own dictators. And now they're democratic countries. 2 of them in the EU even.
It only starts looking like Irak if the US try to continue controlling it. Otherwise it will just be another partially corrupt country.