The Russian Second Army under General Oskar Gripenberg, between 25 and 29 January, attacked the Japanese left flank near the town of Sandepu, almost breaking through. This caught the Japanese by surprise. However, without support from other Russian units the attack stalled, Gripenberg was ordered to halt by Kuropatkin and the battle was inconclusive. The Japanese knew that they needed to destroy the Russian army in Manchuria before Russian reinforcements arrived via the Trans-Siberian railroad.
The Russian Second Army under General Oskar Gripenberg, between 25 and 29 January, attacked the Japanese left flank near the town of Sandepu, almost breaking through. This caught the Japanese by surprise. However, without support from other Russian units the attack stalled, Gripenberg was ordered to halt by Kuropatkin and the battle was inconclusive. The Japanese knew that they needed to destroy the Russian army in Manchuria before Russian reinforcements arrived via the Trans-Siberian railroad.