Soviet Union
1941, Battle of Kursk - Wikipedia, Battle of Moscow, II World War: Stalingrad, Kursk - July 1943, Stalingrad, Stalingrad Battlefield Info, Stalingrad, History of the Battle on the Volga, The Battle for Stalingrad, World War II in Ukraine
Lessons of the Winter War in Finland
History and lessons of the Winter War between Finland and Stalin's Red Army.
Operation Barbarossa
Eastern front combat history, 1941-1945. Covers the entire period, not just Operation BARBAROSSA (despite the name).
The Battle of the Winter War
History of the Finnish-Soviet Winter War, November 30th 1939 - March 13th 1940