Answer
Paulus surrendered in Stalingrad on 31 January 1943, ending the six-month Battle of Stalingrad. The German Sixth Army had been surrounded by Soviet forces since November 1942, and Paulus had been under pressure to surrender for weeks. However, he refused to give up, hoping that Hitler would send reinforcements to break the encirclement. On 31 January, Paulus finally gave in and surrendered his army.