In October 1914, the 2nd Army took part in the Battle of the Vistula River. On 7 October 1914, German troops under General August von Mackensen attacked the 2nd Army near Troitsa. On 11 October, Sheydeman's 2nd Siberian Army Corps took the Warsaw forts. Three days later, the forces of the 1st Siberian, 2nd Siberian, 1st, 2nd, and 4th Army Corps attacked the Mackensen group in the Prutkov region. They took Błonie and Sochaczew on 15–17 October, and on 24 October Scheidemann's army threw the German 9th Army back behind Rawka river. On 30 October Sheydeman's troops occupied Lodz.