The Ottoman’s raged war against Croatia, and over the next two hundred years many Croats fled the area. This prompted the Habsburgs to urge Orthodox Bosnians and Serbs to aid in the Croatian Military Frontier, which peaked the already set-in-motion Serb migration into this region.. By the 19th century, the Illyrian movement (an advocation for the unity of all Serbs) began to gain momentum, and …

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