Донской фронт
With German forces heavily engaged at Stalingrad and spread thinly due to their deep penetrations into the Caucasus, the Wehrmacht was increasingly reliant on their Romanian and Italian allies to cover the flanks of their extended line, on the north along the Don, and to the south along the Volga. "Operation Uranus" kicked off on 17 November with the intention of making a double envelopment of Paulus's men at Stalingrad by breaking through the flanks. The Southwestern Front commanded by General Vatutin quickly overwhelmed the 3rd Romanian Army just to the north of Rokossovsky's Don Front, while Yeryomenko's Stalingrad Front began their own attack just south of Stalingrad. Rokossovsky's Don Front played a largely subordinate role in the main attack, but the 66th Army supported Vatutin's attack from the north by outflanking the left extreme of the German line where it met the Romanian 3rd Army, while the 24th and 65th squeezed the German defenders—pinning them in place as the pincers of the main attacks rapidly enveloped them.