Early history of Bosnia and Herzegovina blocks. Daors made unique bronze coins and sculptures. Conflict between the Illyrians and ancient Romans started in 229 BC. In the year 168 BC, the land of Illyrians became the Roman province of Illyricum. Rome complete its annexation of the region in 9, ending a three-year rebellion of Illyrians against Romans. In year 10, Illyria was divided and the northern strip of today's Bosnia along the south side of the Sava River became part of the new province of Pannonia. The rest of what is today Bosnia, Herzegovina, Montenegro, Dalmatia, and western Serbia became part of the Roman province of
Croats of Bosnia and Herzegovina and Fojnica. Around 30% of the present-day territory of Bosnia and Herzegovina become part of Banovina of Croatia. Those parts had a Croatian majority. Creation of Banovina of Croatia was one of the solutions to the ""Croatian issue"". After the collapse of Yugoslavia amidst German and Italian invasion in April 1941, the Axis puppet state which encompassed the entire Bosnia and Herzegovina, Independent State of Croatia (NDH) under the radical Croat nationalist ustaša regime was established. Bosnian Croats were divided, as some supported NDH, some actively opposed it by joining or supporting the Yugoslav Partisans, while others chose to wait,