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
History of Bosnia and Herzegovina country for accession into the EU; the EU-BiH Stabilization and Association Agreement (SAA) was signed in 2008 and entered into force in June 2015. Bosnia and Herzegovina submitted its formal application for EU membership on 15 February 2016; the EU Council conditioned its consideration to further progress on the implementation of the Reform Agenda, as well as to the adaptation of the SAA to take into account the EU accession of Croatia, and to an agreement on a functioning Coordination Mechanism on EU matters. These conditions were fulfilled by the Summer 2016. The accession of Bosnia and Herzegovina to NATO