Whakaotihia te rerenga e whai ake nei: I te mutunga o te rautau 19 me te timatanga o te rautau 20, ko Valpovo tetahi waahanga o te Kaunihera o Virovitica o te Basileia o Croatia-Slavonia. I te Poutu-te-rangi 1945, ka whakarewahia e ngā ope Tiamana
Operation Spring Awakening. Ko te whakaoho o te puna. I runga i te ringa ki te tonga i neke ki te raki na roto i te Valpovo ko te 1st Cossack Cavalry Division. Ko te mahi he kino, he nui hoki. Ko nga kaitautoko o Yugoslav o te 3rd Army (Yugoslav Partisans) i whakawhiu tonu me te whakaroa i nga Cossacks. I muri tata mai i te mutunga o te Pakanga Tuarua o te Ao, i whakatuhia e nga apiha o te kawanatanga Communist Yugoslav he puni mahi mo nga Tiamana i mahi tae noa ki Mei 1946.