Barbarossa Derailed: The Battle for Smolensk 10 July-10 September 1941 - Volume 2 - The German Offensives on the Flanks and the Third Soviet Counteroffensive, 25 August-10 S

At dawn on 10 July 1941, massed tanks and motorised infantry of German Army Group Centre's Second and Third Panzer Groups crossed the Dnepr and Western Dvina Rivers, beginning what Adolf Hitler and most German officers and soldiers believed would be a triumphal march on Moscow.