<prompt> Qedela lo musho olandelayo: Ngemva kokunqoba kwebutho laseSerbia e-  <response>: Impi yaseKolubara ngoDisemba 1914, impi yaseSerbia yahlala isikhashana kwaze kwaba sekuqaleni kwekwindla lika-1915. Ngaphansi komyalo kaField Marshal August von Mackensen, i-Austro-Hungarian Balkan Army, i-German 11th Army kanye nemifula emifuleni eDanube naseSava yaqala ukuhlasela ngo-Okthoba 6, 1915, ukuhlasela okukhulu kakhulu ngokumelene neSerbia. NgoSepthemba 1915, naphezu kokuzidela okukhulu kwebutho laseSerbia, i-Austro-Hungarian Balkan Army, esewele imifula iSava neDrina kanye ne-German 11th Army ngemuva kokuwela iDanube, bathatha iBelgrade, iSmederevo, iPožarevac neGolubac, bakha ibhuloho elibanzi eningizimu yemifula iSava neDanube, futhi baphoqa amabutho aseSerbia ukuthi ahoxe eningizimu yeSerbia. 