Question: Liborius Ritter von Frank fought in which battle between Austria Hungary and Serbia which commenced on November 16, 1914?
Sentence (from "Battle of Kolubara"): Valjevo and Užice were retaken by the Serbs on 8 December and the Austro-Hungarians retreated to Belgrade, which 5th Army commander Liborius Ritter von Frank deemed to be untenable.
Relevant evidence: No