ith a 2nd round on 25 November), which resulted in a national assembly dominated by three ethnically based parties, which had formed a loose coalition to oust the communists from power. Croatia and Slovenia's subsequent declarations of independence and the warfare that ensued placed Bosnia and Herzegovina and its three constituent peoples in an awkward position. A significant split soon developed on the issue of whether to stay with the Yugoslav federation (overwhelmingly favored among Serbs) or seek independence (overwhelmingly favored among Bosniaks and Croats).
The Serb members of parliament, consisting mainly of the Serb Democratic Party members, abandoned the central parliament in Sarajevo, and formed the Assembly of the Serb People of Bosnia and Herzegovina on 24 October 1991, which marked the end of the tri-ethnic coalition that governed after the elections in 1990. This Assembly established the Serbian Republic of Bosnia and Herzegovina on 9 January 1992, which became Republika Srpska in August 1992.
On 18 November 1991, the party branch in Bosnia and Herzegovina of the ruling party in the Republic of Croatia, the Croatian Democratic Union (HDZ), proclaimed the existence of the Croatian Community of Herzeg-Bosnia, as a separate "political, cultural, economic and territorial whole", on the territory of Bosnia and Herzegovina, with Croat Defence Council (HVO) as its military part. The Bosnian government did not recognize it. The Constitutional Court of Bosnia and Herzegovina declared Herzeg-Bosnia illegal, first on 14 September 1992 and again on 20 January 1994.
A declaration of Bosnia and Herzegovina sovereignty on 15 October 1991 was followed by a referendum for independence from Yugoslavia on 29 February and 1 March 1992 boycotted by the great majority of the Serbs. The turnout in the independence referendum was 63.4 per cent and 99.7 per cent of voters voted for independence. Bosnia and Herzegovina declared independence on 3 March
