Tuhia he haere tonu mo tenei irava - I uru te wehenga ki te pakanga o Serbia o 1914 hei waahanga o te XIII Corps, i te tuatahi i Syrmia, i Mačva, i te wa o te pakanga e whitu-ra mo Šabac me nga pakanga o Cer me Kolubara
He aha? I te Noema 11, 1914 I whakakapihia a Sarkotić e Johann von Salis-Seewis nana i arahi te wehenga i te whakaeke tuarua a Serbia. Whai muri i te koretake o te pakanga, i tukuna ano i te timatanga o te tau 1915 ki Galicia i te taha rawhiti me te toenga o XIII. Ko te tinana. I te 22 o Hune 1915 i whakakapihia a Salis-Seewis, i a ia e wehe ana, i mua i te tiimata o te Emepaea o Ruhia ki te whakaeke i a Brusilov. I te 25 o Hune 1917 i riro i a ia te mana o te wehenga.