The Battle of Stalingrad is widely regarded as the bloodiest single battle World War II. It was fought between the Red Army and the Axis forces - especially the Wehrmacht - on the Eastern Front from August 1942 to February 1943. It happened as a result of the implementation by the Wehrmacht of a plan code-named Fall Blau, which was aimed at taking over the southern areas of the USSR, reaching the Caucasus and seizing oil fields in Maykop and Baku. However, in the course of the implementation of this plan, as a result of, inter alia, the intervention of Adolf Hitler, the seizure of the city of Stalingrad became one of the main objectives of the operation. For Nazi Germany, this decision turned out to be one of the worst in the history of World War II. The Stalingrad battle turned into horribly bloody and very heavy city fights, during which every house or street was fought, and the front line often ran through rooms or staircases in apartment blocks! Ultimately, as a result of it, the Wehrmacht suffered a great defeat, and the entire 6th Army was taken prisoner by the Soviets, including Field Marshal Friedrich Paulus. It is estimated that during the entire Battle of Stalingrad, the Axis forces lost about 850,000 soldiers - killed, wounded and captured. The Battle of Stalingrad also marked a turn in the war on the Eastern Front, which from then on began to take a favorable turn for the USSR.