Croats of Bosnia and Herzegovina transferred to the Austro-Hungarian Empire. Even after the fall of the Ottoman rule, the population of Bosnia and Herzegovina was divided. In the Habsburg Kingdom of Croatia, Croatian politicians strived for the unification of the Kingdom of Dalmatia with Croatia. Another ambition of Croatian politicians was to incorporate the Condominium of Bosnia and Herzegovina into the Kingdom of Croatia. The Habsburg Governor Béni Kállay resorted to co-opt religious institutions. Soon, the Austrian Emperor gained support to name Orthodox metropolitans and Catholic bishops and to choose Muslim hierarchy. The first Catholic archbishop was Josip Stadler. Both apostolic vicarates, Bosnian and Herzegovinian,
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