As a result of this split , the Soviets had cut Removing the main supply lifeline of Army Group South- the Lvov-Odessa railway .

Similarly , most of the Wehrmacht 's panzer divisions stationed Placing in the East were deployed Arranging in the Ukraine , belonging to Army Group South- indicative is the fact that out of 30 panzer and panzer-grenadier divisions available in late 1943 , 22 were stationed Placing in the Ukraine .