Breakup
Main article: Breakup of YugoslaviaThough the 1974 Constitution reduced the power of the federal government, Tito's authority substituted for this weakness until his death in 1980.
After Tito's death on 4 May 1980, ethnic tensions grew in Yugoslavia. The legacy of the Constitution of 1974 was used to throw the system of decision-making into a state of paralysis, made all the more hopeless as the conflict of interests had become irreconcilable. The constitutional crisis that inevitably followed resulted in a rise of nationalism in all republics: Slovenia and Croatia made demands for looser ties within the Federation, the Albanian majority in Kosovo demanded the status of a republic, Serbia sought absolute, not only relative dominion over Yugoslavia. Added to this, the Croat quest for independence led to large Serb communities within Croatia rebelling and trying to secede from the Croat republic.
In 1986, the Serbian Academy of Sciences and Arts drafted a memorandum addressing some burning issues concerning position of Serbs as the most numerous people in Yugoslavia. The largest Yugoslav republic in territory and population, Serbia's influence over the regions of Kosovo and Vojvodina was reduced by the 1974 Constitution. Because its two autonomous provinces had de facto prerogatives of full-fledged republics, Serbia found that its hands were tied, for the republican government was restricted in making and carrying out decisions that would apply to the provinces. Since the provinces had a vote in the Federal Presidency Council (an eight-member council composed of representatives from six republics and two autonomous provinces), they sometimes even entered into coalition with other republics, thus outvoting Serbia. Serbia's political impotence made it possible for others to exert pressure on the 2 million Serbs (20% of total Serbian population) living outside Serbia.
Serbian communist leader Slobodan Milošević sought to restore pre-1974 Serbian sovereignty. Other republics, especially Slovenia and Croatia, denounced this move as a revival of great Serbian hegemonism. Milošević succeeded in reducing the autonomy of Vojvodina and of Kosovo and Metohija, but both entities retained a vote in the Yugoslav Presidency Council. The very instrument that reduced Serbian influence before was now used to increase it: in the eight member Council, Serbia could now count on four votes minimum – Serbia proper, then-loyal Montenegro, and Vojvodina and Kosovo.
As a result of these events, the ethnic Albanian miners in Kosovo organized the 1989 Kosovo miners' strike, which dovetailed into ethnic conflict between the Albanians and the non-Albanians in the province. At around 80% of the population of Kosovo in the 1980s, ethnic-Albanians were the majority. The number of Slavs in Kosovo (mainly Serbs) was quickly declining for several reasons, among them the ever increasing ethnic tensions and subsequent emigration from the area. By 1999 the Slavs formed as little as 10% of the total population in Kosovo.
Meanwhile Slovenia, under the presidency of Milan Kučan, and Croatia supported Albanian miners and their struggle for formal recognition. Initial strikes turned into widespread demonstrations demanding a Kosovan republic. This angered Serbia's leadership which proceeded to use police force, and later even the Federal Army was sent to the province by the order of the Serbia-held majority in the Yugoslav Presidency Council.
In January 1990, the extraordinary 14th Congress of the League of Communists of Yugoslavia was convened. For most of the time, the Slovenian and Serbian delegations were arguing over the future of the League of Communists and Yugoslavia. The Serbian delegation, led by Milošević, insisted on a policy of "one person, one vote", which would empower the plurality population, the Serbs. In turn, the Slovenes, supported by Croats, sought to reform Yugoslavia by devolving even more power to republics, but were voted down. As a result, the Slovenian, and eventually Croatian delegation left the Congress, and the all-Yugoslav Communist party was dissolved.
Following the fall of communism in the rest of Eastern Europe, each of the republics held multi-party elections in 1990. Slovenia and Croatia held the elections in April since their communist parties chose to cede power peacefully. Other Yugoslav republics – especially Serbia – were more or less dissatisfied with the democratization in two of the republics and proposed different sanctions (e.g. Serbian "customs tax" for Slovenian products) against the two of the union but as the year passed other republics' communist parties saw the inevitability of the democratization process and in December as the last member of the federation – Serbia held parliamentary elections which confirmed (former) communists rule in this republic.
The unresolved issues however remained. In particular, Slovenia and Croatia elected governments oriented towards greater autonomy of the republics (under Milan Kučan and Franjo Tuđman, respectively), since it became clear that Serbian domination attempts and increasingly different levels of democratic standards were becoming increasingly incompatible. Serbia and Montenegro elected candidates who favoured Yugoslav unity. Serbs in Croatia would not accept a status of a national minority in a sovereign Croatia, since they would be demoted from a constituent nation of Croatia and this would consequently diminish their rights.
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