As I read it, he had to; every other ethnic group in Kosovo was being brutalized by albanian savages. The web site linked above is a NY Times article from 1987. A few highlights:
...A young Army conscript of ethnic Albanian origin shot up his barracks, killing four sleeping Slavic bunkmates and wounding six others....The army says it has uncovered hundreds of subversive ethnic Albanian cells in its ranks. Some arsenals have been raided.
...Ethnic Albanians in the Government have manipulated public funds and regulations to take over land belonging to Serbs. And politicians have exchanged vicious insults.
...Slavic Orthodox churches have been attacked, and flags have been torn down. Wells have been poisoned and crops burned. Slavic boys have been knifed, and some young ethnic Albanians have been told by their elders to rape Serbian girls...
There's a lot more. I mean, don't you just love the idea of your tax dollars being used to bomb an innocent Christian country into the stone age for these kinds of people?