After driving the Finnish riflemen out of Bialla, the shopkeepers and dockworkers of Georg Freiherr von der Goltz's Landwehr division-now toughened by their combat experience-next turned to another Russian formation of high fighting reputation. The III Siberian Rifle Corps had just arrived at the front after a weeks-long journey from Irkutsk. The planned offensive against First Army could not go forward with the tough Siberians poised to roll up the German right flank.

For the second time in two days, the Landwehr scored a victory over a very good Russian formation. The Germans had massive numerical superiority, despite a lack of machine guns and shortage of artillery, and used it to drive back the Siberians and disrupt them enough to keep them out of the coming Battle of the Masurian Lakes. The good performance of Germany's part-time soldiers would be the real story of the East Prussian campaign.