In late April and early May 1990, the
first multi-party elections were held in Croatia, with
Franjo Tuđman's win resulting in further
nationalist tensions. On 30 May 1990, the new
Croatian Parliament held its first session. President Tuđman announced his manifesto for a new Constitution and a multitude of political, economic, and social changes, including a plan for Yugoslavia as a confederation of sovereign states. On 25 July 1990, Croatia made constitutional amendments that asserted and effected its sovereignty – the "Socialist" prefix was dropped from the country's name, the
President of Croatia replaced the President of the Presidency, in addition to other changes. The changes in the July 1990 Croatian Constitution did not relate to the status of the Serbs, which remained identical to the one granted by the 1974 Croatian Constitution (based on the
1974 Yugoslav Constitution). Nationalist
Serbs in Croatia boycotted the
Sabor and seized control of Serb-inhabited territory,
setting up road blocks and voting for those areas to become
autonomous. The
Serb "autonomous oblasts" would soon become increasingly intent on achieving independence from Croatia. After HDZ came to power, they conducted a purge of Serbs employed in public administration, especially the police. The Serbs of Croatia held a disproportionate number of official posts: in 1984, 22.6% of the members of the
League of Communists of Croatia and 17.7% of appointed officials in Croatia were Serbs, including 28-31% in the Ministry of the Interior (the police). and in 1991, 12.2% of the total population of Croatia. An even greater proportion of those posts had been held by Serbs in Croatia earlier on, which created a perception that the Serbs were guardians of the communist regime. President Tuđman made several clumsy remarks — such as the one from a 16 April 1990 speech that the Croatian historian has described as something taken out of context. All this was deliberately distorted by Milošević's media in order to artificially spark fear that any form of an independent Croatia is a new "
ustashe state": in one instance, TV Belgrade showed Tuđman shaking hands with German Chancellor
Helmut Kohl, accusing them of plotting to impose "a Fourth Reich". The new Tuđman government was nationalistic and insensitive towards Serbs, but did not pose a threat to them before the war. The political crisis escalated when the Serb-populated areas attempted to form an enclave called
Serbian Krajina which intended to separate from Croatia if Croatia itself attempted to separate from Yugoslavia. The Serb leadership in Krajina refused to recognize the government of the Republic of Croatia as having sovereignty over them. The crisis began in August 1990 with the
Log Revolution as Croatian Serbs cut down trees and used them to block roads. This hampered Croatian tourism and caused alarm in the province of
Dalmatia as Croatia was hosting the
1990 European Athletics Championships in
Split. On 21 December 1990, a new "
Christmas Constitution" was passed, that adopted a
liberal democracy. The constitution defined Croatia as "the national state of the Croatian nation and a state of members of other nations and minorities who are its citizens: Serbs... who are guaranteed
equality with citizens of Croatian nationality...." The status of Serbs was changed from an explicitly mentioned nation (
narod) to a nation listed together with minorities (
narodi i manjine). This constitutional change was also read by the majority of Serb politicians as taking away some of the rights that the Serbs had been granted by the previous Socialist constitution, and it fuelled extremism among the Serbs of Croatia. This was not based on the literal reading of the former Constitution of SR Croatia, which had also treated solely Croats as a constitutive nation, saying Croatia was "national state" for Croats, "state" for Serbs and other minorities. On 21 February 1991, Croatia declared its Constitution and laws supreme to that of the SFRY, and the Parliament enacted a formal resolution on the process of disassociation () from SFR Yugoslavia and possible new association with other sovereign republics. Over two hundred armed incidents involving the rebel Serbs and Croatian police were reported between August 1990 and April 1991. ==Independence referendum and decisions==