A cikin Afrilu 1443 Sarki Vladislaus da barorinsa sun yanke shawarar yin babban yaƙin yaƙi da Daular Usmaniyya .Tare da shiga tsakani na Cardinal Cesarini, Vladislaus ya cimma matsaya tare da Frederick III na Jamus, wanda ya kasance majibincin yaron Ladislaus V. Rundunar sojojin ta ba da tabbacin cewa Frederick III ba zai kai wa Hungary hari a cikin watanni goma sha biyu masu zuwa ba.Da yake kashe kusan furannin gwal 32,000 daga taskarsa, Hunyadi ya dauki hayar sojojin haya sama da 10,000.Sarkin ya kuma tara dakaru, kuma an kawo wasu sojoji daga Poland da Moldavia.Sarki da Hunyadi sun tafi yaƙin neman zaɓe a shugaban runduna 25-27,000 a cikin kaka na shekara ta 1443. A ka'idar, Vladislaus ya jagoranci sojojin, amma ainihin jagoran yakin shine Hunyadi.Despot Đurađ Branković ya haɗu da su tare da sojojin 8,000.Hunyadi ya umurci jami’an tsaron tare da fatattakar wasu kananan sojojin daular Usmaniyya guda hudu, lamarin da ya kawo cikas ga hadewarsu.Ya kama Kruševac, Niš da Sofia.Duk da haka, sojojin kasar Hungary sun kasa kutsawa ta hanyar tsaunin Balkan zuwa Edirne.Yanayin sanyi da rashin kayan aiki ya tilasta wa sojojin Kirista dakatar da yakin da aka yi a Zlatitsa.Bayan sun yi nasara a yakin Kunovica, sun koma Belgrade a watan Janairu da Buda a cikin Fabrairu 1444.