Napoleon with 30,000 troops pounced on Blücher's widely separated army in the Six Days' Campaign. On 10 February, the French attacked Nicolay Dmitrevich Olssufiev's 4,000 Russian infantry and 24 guns. Stung by recent criticism, Olssufiev unwisely stood his ground against overwhelming odds in the Battle of Champaubert. About 11:00 am Marmont's corps began the assault with the divisions of Ricard on the right against Baye and Lagrange on the left against Bannay. Despite stout resistance, the villages were seized by 3:00 pm and French cavalry was advancing on both flanks. Belatedly Olssufiev ordered a retreat but 1,000 men and nine guns were surrounded at Champaubert and forced to surrender. At most, 1,700 Russians escaped through the woods east to Étoges and Olssufiev became a French prisoner. There were 38,000 Allies under Fabian Wilhelm von Osten-Sacken and Ludwig Yorck von Wartenburg to the west and Blücher's 19,000 to the east.