<prompt> Feleletša polelo ye e latelago: Ka morago ga phenyo ya madira a Serbia ka  <response>: Ntweng ya Kolubara ka December 1914, ntwa ya Serbia e ile ya khutša go fihlela mathomong a lehlabula la 1915. Ka tlase ga taolo ya Field Marshal August von Mackensen, Mašole a Austro-Hungarian a Balkan, Mašole a Jeremane a 11th le dinoka tša dinoka ka Danube le Sava ba ile ba thoma tlhaselo ka 6 Oktoboro 1915, tlhaselo e kgolo kudu kgahlanong le Serbia. Ka Setemere 1915, go sa šetšwe boikgafo bjo bogolo bja madira a Serbia, Madira a Austro-Hungarian a Balkan, ka morago ga go tshela dinoka tša Sava le Drina le Madira a Jeremane a 11 ka morago ga go tshela Danube, ba ile ba thopa Belgrade, Smederevo, Požarevac le Golubac, ba hloma hlogo ya leporogo le lephara ka borwa bja dinoka tša Sava le Danube, gomme ba gapeletša madira a Serbia go boela morago go ya ka borwa bja Serbia. 