Task: Text Categorization
Input (English): In this battle, Colonel Raiynin led the 1077th Anti-Aircraft Regiment, which was composed entirely of young women. The command of Mamayev Kurgan altered several times during this battle, during which Yakov Pavlov used an apartment building as a fortress. During this battle's Operation Uranus, Vasilevsky and (*) Zhukov encircled the enemy, including General Paulus and his Sixth Army who were unsuccessful in constructing an air bridge with the Luftwaffe. For ten points, name this Eastern Front battle in which the Nazis were unable to take control of a certain Russian city on the Volga.
Output (English): History