Slovenia 65.4%, Serbia with 63.7% and Croatia with 63.6%. Religious differences between Orthodox Serbs and Macedonians, Catholic Croats and Slovenes, and Muslim Bosniaks and Albanians alongside the rise of nationalism contributed to the collapse of Yugoslavia in 1991. The Kingdom of Yugoslavia had unitary policies, suppressed autonomy and proclaimed the official ideology to be that Serbs, Croats, Bosniaks, Montenegrins, Macedonians and Slovenes were tribes of one nation of Yugoslavs (see Yugoslavism), to the heavy disagreement and resistance from Croats and other ethnic groups; this was interpreted as gradual Serbianization of Yugoslavia's non-Serb population. The ruling Communist Party of the Socialist Federal Republic of Yugoslavia was ideologically opposed to ethnic unitarism and royal hegemony, and instead promoted ethnic diversity and social Yugoslavism within the notion of "brotherhood and unity", while organizing the country as a federation. See also History of the Balkans Notes and references Notes References Further reading Allcock, John B. Explaining Yugoslavia (Columbia University Press, 2000) Allcock, John B. et al. eds. Conflict in the Former Yugoslavia: An Encyclopedia (1998) Bezdrob, Anne Marie du Preez. Sarajevo Roses: War Memoirs of a Peacekeeper. Oshun, 2002. Chan, Adrian. Free to Choose: A Teacher's Resource and Activity Guide to Revolution and Reform in Eastern Europe. Stanford, CA: SPICE, 1991. ED 351 248 Cigar, Norman. Genocide in Bosnia: The Policy of Ethnic-Cleansing. College Station: Texas A&M University Press, 1995 Cohen, Lenard J. Broken Bonds: The Disintegration of Yugoslavia. Boulder, CO: Westview Press, 1993 Conversi, Daniele: German -Bashing and the Breakup of Yugoslavia, The Donald W. Treadgold Papers in Russian, East European and Central Asian Studies, no. 16, March 1998 (University of Washington: HMJ School of International Studies) Djilas, Milovan. Land without Justice, [with] introd. and notes by William Jovanovich. New York: Harcourt, Brace and Co., 1958. Dragnich, Alex N. Serbs and Croats. The Struggle in Yugoslavia. New York: Harcourt Brace Jovanovich, 1992 Fisher, Sharon. Political Change in Post-Communist Slovakia and Croatia: From Nationalist to Europeanist. New York: Palgrave Macmillan, 2006 Glenny, Mischa. The Balkans: Nationalism, War and the Great Powers, 1804–1999 (London: Penguin Books Ltd, 2000) Glenny, Mischa. The fall of Yugoslavia: The Third Balkan War, Gutman, Roy. A Witness to Genocide. The 1993 Pulitzer Prize-winning Dispatches on the "Ethnic Cleansing" of Bosnia. New York: Macmillan, 1993 Hall, Richard C., ed. War in the Balkans: An Encyclopedic History from the Fall of the Ottoman Empire to the Breakup of Yugoslavia (2014) excerpt Hall,