Here is a data visualization showing Soviet and Axis deployments on November 18, 1942. It illustrates the German Sixth Army's focus on the the city of Stalingrad, and the Soviet build-up on the more weakly held flanks south and west of the city. The next day, the Soviets attacked with complete surprise. From that day, it was downhill almost all the way to Berlin. Thus November 18, 1942 was the high water mark for the Third Reich.
UGH! The way the image is saved here makes it unreadable. For a better version, I've uploaded it to Flickr. Click on the image to go there.
