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 away from the oil-rich Caucasus, which had been Hitler's original grand-strategic objective. The Royal Romanian Air Force was also involved in the Axis air operations at Stalingrad. Starting 23 October 1942, Romanian pilots flew a total of 4,000 sorties, during which they destroyed 61 Soviet aircraft. The Romanian Air Force lost 79 aircraft, most of them captured on the ground along with their airfields. After three months of slow advance, the Germans finally reached the river banks, capturing 90% of the ruined city and splitting the remaining Soviet forces into two narrow pockets. Ice floes on the Volga now prevented