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
Partition of Bosnia and Herzegovina it was internally divided into six oblasts of the Kingdom of Serbs, Croats and Slovenes. In 1929, the oblasts were replaced with four Banovinas of the Kingdom of Yugoslavia, but all of them also included regions outside of Bosnia and Herzegovina. The Cvetković-Maček agreement that created the Banovina of Croatia in 1939 encouraged what was essentially a partition of Bosnia between Croatia and Serbia. The agreement angered Bosniaks, then known as Yugoslav Muslims, including the Yugoslav Muslim Organization (JMO) that denounced the agreement's partition of Bosnia and Herzegovina. During the Bosnian War, it was proposed that BiH be divided into