Rubuta ci gaba don wannan sakin layi - Rukunin ya shiga cikin Yaƙin Serbia na 1914 a matsayin wani ɓangare na XIII Corps, da farko a Syrmia, a Mačva, sannan a lokacin yaƙin kwana bakwai na Šabac da kuma yaƙe-yaƙe na Cer da Kolubara
Ka yi haƙuri. A ranar 11 ga Nuwamba, 1914, Johann von Salis-Seewis ya maye gurbin Sarkotić wanda ya jagoranci rukunin a lokacin hare-haren na biyu na Serbia. Bayan rashin nasarar yakin, an sake tura shi a farkon 1915 a Galicia a Gabashin Gabas tare da sauran XIII. Ƙungiyar. A ranar 22 ga Yuni 1915 an maye gurbin Salis-Seewis, yayin da yake hutu, kafin Daular Rasha ta kaddamar da hare-haren Brusilov. A ranar 25 ga Yuni 1917 ya dauki umurnin sashen.