The civil wars in the Balkans which followed the breakup of Yugoslavia have been heavily tinged with sectarianism. Croats and Slovenes have traditionally been Catholic, Serbs and Macedonians Eastern Orthodox, and Bosniaks and the majority of Albanians Muslim. Religious affiliation served as a marker of group identity in this conflict, despite relatively low rates of religious practice and belief among these various ethnic groups after decades of Communism.[citation needed]