Nyorai kuenderera mberi kweiyi ndima - Muhondo iyi, kukundwa kweSerbia kwaifungidzirwa kuti kwaive pedyo, zvirinani nevanoona vekunze, zvichienzaniswa nesimba reAustria-Hungary. Serbia yakanga yagadzirira zvakanaka, zvisinei, uye pashure pezvikwata zvehondo muna 1914 (Hondo yeCer, Hondo yeKolubara
), kurasikirwa nekudzorerwa kweBelgrade, uye kurwisa kweSerbia nekutora dzimwe nzvimbo dzeAustria dzine huwandu hwevanhu veSerbia (muSirmia nekumabvazuva kweBosnia), uto reAustria-Hungary rakadzokera shure. Musi waJuly 5, 1914, zvinhu zvakachinja sezvo Mambo Peter I akarega mabasa ake achipa mugari wenhaka Alexander, achimuita mutongi wake.