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
Agreement on Friendship and Cooperation between Bosnia and Herzegovina and Croatia the winter Bosniaks began leaving the HVO and joining the ARBiH which also began receiving supplies from Croatia. In May, HVO Major General Ante Roso declared that the only "legal military force" in HZ-HB was the HVO and that "all orders from the TO [Territorial Defense] command [of Bosnia and Herzegovina] are invalid, and are to be considered illegal on this territory". The Croatian government played a "double game" in Bosnia and Herzegovina and "a military solution required Bosnia as an ally, but a diplomatic solution required Bosnia as a victim". Tuđman's Croatian Democratic Union (HDZ) party held important positions