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
Bosnia and Herzegovina Bosnia and Herzegovina Bosnia and Herzegovina ( or ; abbreviated B&H; Bosnian and Serbian: "Bosna i Hercegovina" (BiH) / Боснa и Херцеговина (БиХ), Croatian: "Bosna i Hercegovina" (BiH), ), sometimes called Bosnia–Herzegovina, and often known informally as Bosnia, is a country in Southeastern Europe in the Balkan Peninsula. Sarajevo is the capital and largest city. Bosnia and Herzegovina is an almost landlocked country – it has a narrow coast at the Adriatic Sea, about long surrounding the town of Neum. It is bordered by Croatia to the north, west and south; Serbia to the east; and Montenegro to the southeast,