Croats of Bosnia and Herzegovina Dalmatian Croatia formed a united Croatian kingdom, which included Dalmatia and part of Bosnia and Herzegovina, Pannonia (eastern Slavonia and northeastern Bosnia), and Savia (western Slavonia). In 1102 Croatia entered into a union with the Kingdom of Hungary. After this, Bosnia, which was earlier part of the Kingdom of Croatia, started to disassociate with Croatia. At first, Bosnia became a separate principality under Ban Kulin who managed to solidify Bosnian autonomy at the expense of more powerful neighbours, but only in the 14th century did Bosnia become a formidable state. In the 14th century, King Tvrtko I conquered part of
Geography of Bosnia and Herzegovina Geography of Bosnia and Herzegovina Bosnia and Herzegovina is located in Southeastern Europe, in the western Balkans. It has a 932 km border with Croatia to the north and southwest, a 357 km border with Serbia to the east, and a 249 km border with Montenegro to the southeast. It borders the Adriatic Sea along its 20 km (12.42 mi) coastline. The most striking features of the local terrain are valleys and mountains which measure up to 2386 m in height. The country is mostly mountainous, encompassing the central Dinaric Alps. The northeastern parts reach into the Pannonian basin, while