Heeresgruppe Weichsel
The battle included heavy fighting by the three Fronts of the Marshals of Soviet Union Konstantin Rokossovsky's 2nd Belorussian Front, Georgy Zhukov's 1st Belorussian Front and Ivan Konev's 1st Ukrainian Front, that assaulted the defending Wehrmacht Army Group Vistula commanded by Colonel-General (Generaloberst) Gotthard Heinrici and Field Marshal Ferdinand Schörner's Army Group Centre.