You need some education.
I don't really have a dog in this fight, but every ethnic group in the former Yugoslavia has behaved and continues to behave like savages, so I simply don't understand the ludicrous apologetics for the Serbs, to say nothing of supporting Serbia over the United States.
The Serbs lorded it over Greater Serbia, err, "Yugoslavia" for 80 years. They are simply being repaid for the kindnesses everyone else received from them.