Kammala jumla mai zuwa: A farkon watan Disamba, Rundunar Sojan Sarauta ta Serbia ta kaddamar da wani mummunan hari, ta ci nasara da Austro-Hungarians a
Yaƙin Kolubara da kuma dawo da Belgrade kwana ɗaya bayan da aka kafa sabuwar gwamnatin soja ta Janar Sarkotic. A ranar 15 ga Disamba, Rundunar Sojojin Sarauta ta Serbia ta kama Semlin, bayan ta tsallaka iyaka don bin Austro-Hungary,