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,
Demographic history of Bosnia and Herzegovina Statistics in Belgrade composed a figure of 179,173 persons killed in the war in Bosnia and Herzegovina during the Second World War: By the plans of Nazi Germany and the Independent State of Croatia 110,000 Serbs were relocated and transported to German-occupied Serbia. Just in the period of May to August 1941 over 100,000 Serbs were expelled to Serbia. In the heat of war Serbia had 200,000-400,000 Serbian refugees from Ustaša-held Bosnia and Herzegovina. By the end of war 137,000 Serbs have permanently left the territories of Bosnia and Herzegovina. The Muslim population of Bosnia and Herzegovina was also exposed