Demographic history of Bosnia and Herzegovina of Catholic preachers. Preottoman Catholic population had a great share in the emigrations from Bosnia and Herzegovina. The emigration flows were directed towards Dalmatia, Croatia, Slavonia, Baranja and north-west Bačka. The western part of today's region of Bosnia, today known as Bosnian Krajina, was taken by the Ottomans in the 16th century, and was for some time still known as "Turkish Croatia", as its once overwhelming Catholic and Croat majority disappeared and the Ottomans entrenched the new border along the Sava and Una rivers. After more than a century of military losses, the Habsburg Empire waged some victorious wars against
Serbs of Bosnia and Herzegovina figure of 179,173 persons killed in the war in Bosnia and Herzegovina during the Second World War: 129,114 Serbs ("72.1%"); 29,539 Muslims ("16.5%"); 7,850 Croats ("4.4%"); "others" ("7%"). 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 May 1941 Sanski