@_Vikash Those wondering what the pumping is about is actually a subtle jab against the Serbian regime, and support for student protests whose motto is "Pumpaj! ". You're welcome.
@m__ddm99 While most of the Partisans may have been Serbs, Stjepan Filipović was born on 27 January 1916 in Opuzen (modern-day Croatia) as the fifth child of Anton and Ivka Filipović. He was an ethnic Croat.