For 10 points, name this turning point of the Eastern Front of World War
 II.
One of the winning sergeants of this battle captured and defended a four-story apartment building now
 called Pavlov's House. The victors of this battle kept their front line as close to the opponents as possible, a
 strategy called "hugging," which forced most of the fighting onto Mamayev Kurgan Hill. The losers were
 hoping to capture a set of oilfields with a plan dubbed Case Blue. With Operation Uranus, the winners
 encircled General Paulus after the Sixth Army failed to create an "air bridge" with the Luftwaffe. A part of
 Operation Barbarossa, this five-month battle on the Volga claimed some two million lives before Russia
 and the Allies proved victorious. For 10 points, name this turning point of the Eastern Front of World War
 II.
One of the winning sergeants of this battle captured and defended a four-story apartment building now
 called Pavlov's House.
Battle of {Stalingrad}