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
Federation of Bosnia and Herzegovina and Bosniaks ended with mediation by the United States and the signing of the Washington Agreement on 18 March 1994. The cooperation between Croats and Bosniaks was renewed, and the Federation of Bosnia and Herzegovina, a Bosniak and Croat controlled area was established. There was also a proposal to create a confederation of Federation of Bosnia and Herzegovina and Republic of Croatia. The joint command of ARBiH, HVO and Croatian Army (HV) was established in March 1995. The closer cooperation between Croats and Bosniaks was made through the Split Agreement where Bosnia and Herzegovina's Muslim leaders allowed the Croatian Army