http://en.wikipedia.org/wiki/Yugoslavia
First entry under: Yugoslaw wars
"The war broke out when the new regimes tried to replace Yugoslav civilian and military forces with secessionist forces. When in August 1990 Croatia attempted to replace police in the Serb populated Croat Krajina by force, the population first looked for refuge in the JNA caserns, while the army remained passive. The civilians then organised armed resistance.
These armed conflicts between the Croatian armed forces (“police”) and civilians mark the beginning of the Yugoslav war that inflamed the region. Similarly, the attempt to replace Yugoslav frontier police by the Slovenian police provoked regional armed conflicts which finished with a minimal number of victims."
Seems to me its pretty clear who started the actual war.
Your armed forces vs. unarmed civilians. Way to go. No wonder people went balistic.