This offensive , alongside Marshal Zhukov 's great slicing blow , had split Destroying Wehrmacht 's Army Group South into two parts- north and south of Carpathian Mountains .

The Red Army had built Building up their strength around a number of key bridgeheads , with two fronts commanded Control by Marshal Georgy Zhukov and Marshal Ivan Konev .

But Zhukov called Name_conferral a halt , owing Commerce_pay to continued German resistance on his northern flank ( Pomerania ) , and the advance on Berlin had to be delayed Change_event_time until April .

The operation was planned Arranging by Georgy Zhukov in the wake of the successful Operation Iskra and envisaged two separate encirclements .