Austro-Hungarian rule in Bosnia and Herzegovina power over the Catholic Church in Bosnia and Herzegovina, the Emperor established the cathedral in Sarajevo and named Archbishop Dr. Josip Štadler as its head. Just before the occupation of Bosnia and Herzegovina, the Croatian Sabor asked the Emperor to alter the situation in Bosnia and Herzegovina so it could be unified with the Kingdom of Croatia-Slavonia and the Kingdom of Dalmatia. The Emperor refused to accept this demand and dismissed the Sabor. This was done as the Austrian-Hungarian authorities had a plan to isolate Bosnia and Herzegovina from its neighbouring Slavic countries, Croatia and Serbia, and to halt the
Republic of Bosnia and Herzegovina Republic by the formation of the Federation of Bosnia and Herzegovina, a sub-state joint entity. In 1995, the Dayton Peace Accords joined the Federation of Bosnia and Herzegovina with the Serb entity, the Republika Srpska, from that point onward recognized formally as political sub-state entity without a right on secession, into the state of Bosnia and Herzegovina. The 1990 parliamentary elections led to 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