Another Balkan war?

The Serbs in Bosnia and Kosovo have threatened to restart the Balkan wars in Bosnia-Herzegovina that destroyed the Former Yugoslavia in the 1990s if the United Nations grants independence to the disputed region of Kosovo.
These threats from the Serbs to make war in one location (Bosnia) because they do not get what they want in another place (Kosovo) is a terrible indication of the terror-minded Serb population and political leadership as it was similar types of statements that caused and started the most inhumane wars in this half of the century as the Serbs began their campaigns of national slaughter which have changed the world and caused many more problems including a radicalisation of militant Muslims worldwide as well as desperate situations all across South Eastern Europe. The Serbs are represented as half of Bosnia’s population, although they live in their own separate region in Bosnia, and are a violent but shrinking segment of the Kosovo population. Recent alarming statements from Serb leaders and paramilitaries have promised violence and killing if the Kosovo question is answered.
Can the world tolerate, and will the world benefit from, another terrible bout of extreme violence and murder from the Serbs, or will the world and particularly the United States be harmed diplomatically and militarily or financially if the Serbs carry out their plans of violence and ethnic slaughter reminiscent of the 1991-1995 wars in Bosnia and Croatia and in Kosovo in 1999?
The US will most likely suffer diplomatically, militarily and financially if the Serbs re-ignite their campaigns of violence, ethnic killing and beastly behavior against any groups in Bosnia, Kosovo or Croatia. Years of American peacekeeping as well as tens of billions of dollars will de destroyed by the Serbs’ extreme violence and ethnic hate.