Question

Who was the target of the "Ethnic cleansing" in the Balkans?

Answer 1

If you're referring to the Bosnian War in the nineties, a number of sides were responsible for their own acts of "ethnic cleansing", though the Bosnian Serb Army is noted for much of the worst that went on. Perhaps the highest profile trial over responsibility for the genocide was the one for Slobodan Milosevic who was the first president of Serbia during the war.

While in Bosnia, they would target any population that was "non-Serb" whether it was Croats, Muslims, etc...anyone that didn't fit their ethnic profile within territories held by the army.

If you need more detailed information, here's a great article online:
http://www.ppu.org.uk/genocide/g_bosnia.html

Answer 2

Bosnian Muslims