Kammala wannan jumla: A cikin wannan yaƙin, an yi la'akari da rashin nasarar Serbia da ke gabatowa, aƙalla daga masu kallo na waje, idan aka kwatanta da ƙarfin Austria-Hungary. Serbia ta shirya sosai, duk da haka, kuma bayan jerin fadace-fadace a 1914 (Battle of Cer,
Yaƙin Kolubara), asarar da kuma sake ɗaukar Belgrade, da kuma wani yaƙin da aka yi na Serbia tare da mamaye wasu yankuna na Austrian tare da yawan mutanen Serbia (a Syrmia da gabashin Bosnia), sojojin Austro-Hungary sun ja da baya. A ranar 5 ga Yuli, 1914, abubuwa sun canza yayin da tsohon Sarki Peter I ya bar ayyukansa ga magajinsa Alexander, yana mai da shi mai mulki.