I am Bulgarian and in Bulgaria there was a really small minority of Muslim Bulgarians who were converted to Islam by the Turks during the Ottoman Empire domination whom goal was to turn Slavic population (including Serbia and its neighbors) into Turks and muslims. So this minority of Bulgarians did prefer to claim themselves not Bulgarian Muslims but Turks from Bulgaria. They refused Bulgarian culture and refused to be Bulgarians living in the Land of Bulgaria. They were refusing education and the birth control wasn't a common practice as well. So the communist Bulgarian government considering the birth rate and their inclination DID UNDERSTAND THE PROBLEM and made a campaign of assimilation where this minority was asked to either integrate by accepting Bulgarian names and traditions or go to Turkey where they would have been welcomed through an agreement with the Turkish governamnt in 89' and where they could have been what they claimed to be Islamic Turks. So some stayed and some left. In Bulgaria unlike in Serbia we did not have a war and we did not have to kill anybody. The government did the right thing cause it's unacceptable to claim you're a Muslim Arab from Sweden considering that you born there for example and have a full citizenship.
First refugees travelling on Hungarian bus arrive at Austrian border (Reuters)
from the article: Jews reluctantly abandon Swedish city amid growing anti-Semitism