Battle of Stalingrad on Soviet records, over 10,000 German soldiers continued to resist in isolated groups within the city for the next month. Some have presumed that they were motivated by a belief that fighting on was better than a slow death in Soviet captivity. Brown University historian Omer Bartov claims they were motivated by National Socialism. He studied 11,237 letters sent by soldiers inside of Stalingrad between 20 December 1942 and 16 January 1943 to their families in Germany. Almost every letter expressed belief in Germany's ultimate victory and their willingness to fight and die at Stalingrad to achieve that victory. Bartov
Battle of Stalingrad from the Stalingrad Front's Political Department on 8 October 1942 that: "The defeatist mood is almost eliminated and the number of treasonous incidents is getting lower" as an example of the sort of coercion Red Army soldiers experienced under the Special Detachments (later to be renamed SMERSH). On the other hand, Beevor noted the often extraordinary bravery of the Soviet soldiers in a battle that was only comparable to Verdun, and argued that terror alone cannot explain such self-sacrifice. Richard Overy addresses the question of just how important the Red Army's coercive methods were to the Soviet war effort compared