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
Bosnia and Herzegovina–Croatia relations and Herzegovina protested that it will hinder their access to international waters (although Croatian territory and territorial waters completely surround the ones of Bosnia and Herzegovina) and has suggested that the bridge must be higher than to ensure free passage of all types of ships, while Croatia stated that the Neum harbor doesn't currently have a potential to house ships so big. Bosnia and Herzegovina–Croatia relations Bosnia and Herzegovina–Croatia relations are foreign relations between Bosnia and Herzegovina (BiH) and Croatia. Both countries established diplomatic relations on July 7, 1992. Bosnia and Herzegovina has an embassy in Zagreb, while Croatia has