In the south, Malinovsky’s 3rd Ukraininan Front attacked Hollidt’s AOK 6 south of Krivoi Rog on the morning of 6 March and the 8th Guards Army achieved a major breakthrough the next day. Demonstrating great agility, the 8 GA punched through the XXIX Armeekorps, shoving aside the burnt-out 23. Panzer-Division, which had only four tanks, one assault gun and six SPWs. Soviet tanks and cavalry – not seriously impeded by the mud – advanced boldly to AOK 6’s headquarters in Novy Bug and overran many German rear-echelon units. The 23.Panzer-Division was virtually destroyed, losing all its maintenance, medical and logistic units, as well as many of its vehicles.20
The Soviets then pivoted south to envelope five German infantry divisions from the IV Armeekorps and the 9.Panzer-Division. This trapped force was dubbed Gruppe Wittmann and since no rescue force was available, it was compelled to fight its way out of encirclement over the course of the next several weeks. Soon, all of AOK 6 was forced to retreat to avoid being cut off by fast-moving Soviet armoured spearheads. The 24.Panzer-Division fought a rearguard action, but lost over 800 men and one-quarter of its wheeled vehicles, which were immobilized by deep mud. By 13 March, AOK 6 formed a composite Panzergruppe with the remaining tanks of the 9., 23. and 24.Panzer-Divisionen – three tanks – to cover the retreat.21 Fuel shortages plagued the Germans during the retreat, forcing them to abandon a great deal of equipment.Von Manstein expected the 1st Ukrainian Front to head west toward L’vov, so he strengthened Raus’ PzAOK 4 at the expense of Hube’s PzAOK 1. In fact, Zhukov and Konev struck southward on 18 March, breaking through on both of Hube’s flanks. On 17 March, the 2 TA reached the Dnestr River at Yampol. On 20 March, Katukov’s 1 TA re-entered the battle with 140 tanks and severed the last remaining links between Hube’s army and Raus’ PzAOK 4. At the same time, Konev unleashed Kravchenko’s 6 TA, which captured Mogilev-Podol’skiy on the Dniestr. The PzAOK 4 was in retreat and Gruppe Neinhoff, with 4,600 troops, was encircled in Tarnopol by the 1 GA. With his flanks demolished, Hube began falling back toward Kamenets-Podol’skiy, but Katukov severed his communications to the west, then managed to seize a bridgehead across the Dnestr. On 27 March, the 10 GTC from Badanov’s 4 TA captured Kamenets-Podol’skiy, which left Hube in a shrinking salient with his back to the Dnestr. He was cut off from the one remaining German-held bridge over the Dnestr at Khotin and the Luftwaffe began an airlift to supply him.