This created tensions within the Communist leadership, particularly among Communist Serb officials who viewed the 1974 constitution as weakening Serbia's influence and jeopardising the unity of the country by allowing the republics the right to separate. Agreement on Succession Issues Between the Five Successor States of the Former State of Yugoslavia". The Yugoslav designation, however, continues to be used by many, especially in the United States, Canada, and Australia by the descendants of Yugoslav migrants who emigrated while the country still existed.

Kingdom of Yugoslavia - Wikipedia Kingdom of Yugoslavia - Wikipedia

Albanian and Hungarian became nationally recognised minority languages, and the Serbo-Croat of Bosnia and Montenegro altered to a form based on the speech of the local people and not on the standards of Zagreb and Belgrade. The Chetniks were initially supported by the exiled royal government and the Allies, but they soon focused increasingly on combating the Partisans rather than the occupying Axis forces. Changes in Yugoslav politics after King Alexander's death in 1934 brought an end to this policy, but the designation continued to be used by some people.Philosopher Vladimir Dvorniković advocated the establishment of a Yugoslav ethnicity in his 1939 book entitled "The Characterology of the Yugoslavs". Ethnic Serbs, who had created their own state Republic of Serbian Krajina in heavily Serb-populated regions resisted the police forces of the Republic of Croatia who were trying to bring that breakaway region back under Croatian jurisdiction. The Yugoslav ethnic designation was thus imposed for a period of time on all South Slavs in Yugoslavia. With postwar government programs of modernisation and urbanisation, the percentage of religious believers took a dramatic plunge. These armed conflicts between the Croatian armed forces ("police") and civilians mark the beginning of the Yugoslav war that inflamed the region.

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In January 1990, the extraordinary 14th Congress of the League of Communists of Yugoslavia was convened. Prior to World War II, the symbol of Yugoslavism was a plain tricolor flag of blue, white, and red, which was also the national flag of the Kingdom of Yugoslavia, the Yugoslav state in the interwar period. President Josip Broz Tito gradually stopped the protests by giving in to some of the students' demands and saying that "students are right" during a televised speech. The majority of those who had once identified as ethnic "Yugoslavs" reverted to or adopted traditional ethnic and national identities, sometimes due to social pressure, intimidation, disadvantageous consequences, or prevention to continue identifying as Yugoslav by new political authorities. In the former Yugoslavia, the official designation for those who declared themselves simply as Yugoslav was with quotation marks, "Yugoslavs" (introduced in census 1971).File:Cinovi u oruzanim snagama SFRJ - Jugoslavenska narodna armija (JNA) - Ranks of amed forces of the Socialistic Federal Republic of Yugoslavia - Yugoslavian People's Army (YPA).