The Battle of Bialystock was a battle fought on the Eastern Front of World War II in 1941 at Bialystock, involving the forces of Nazi Germany and the Soviet Union. It was part of the former's Operation Barbarossa.
The Wehrmacht were victorious. Together with the Battle of Kiev and the Battle of Vyazma-Briansk, over two million soldiers in the Red Army became German prisoners of war, more than the Germans knew what to do with. The number of prisoners eclipsed the size of the entire British Army.