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 the Pannonian Plain stretching into neighboring Croatia and Serbia. The country has only of coastline, around the town of Neum in the Herzegovina-Neretva Canton. Although the city is surrounded by Croatian peninsulas, by international law, Bosnia and Herzegovina has a right of passage to the outer sea. Sarajevo is the capital and largest city. Other major cities are Banja Luka and Bihać in the northwest region known as Bosanska Krajina, Bijeljina and Tuzla in the northeast, Zenica in the central part of Bosnia and Mostar, the largest city in Herzegovina. There are seven major rivers in Bosnia and Herzegovina: Phytogeographically,