In the Battle of Montmirail, Napoleon with 10,500 men and 36 guns faced Sacken's 18,000 Russians at 11:00 am while the vanguard of Yorck's 18,000 Prussians appeared to the north. By 4:00 pm reinforcements raised the French total to 20,000 and Napoleon went over to the attack. Another historian credited Napoleon with 27,153 troops at Montmirail, while the Prussians believed that 24,000 French soldiers were present. During the early afternoon, the two armies engaged a bitter struggle over the village of Marchais-en-Brie south of the Montmirail-Meaux highway while Napoleon tried to break through Sacken's left wing near the highway. Meanwhile, Yorck's troops attacked from the north at 3:30 pm, only to be repulsed. Finally, the French infantry flushed Sacken's men out of Marchais into the open where they were ridden down by French cavalry. Yorck's belated intervention probably saved Sacken's corps, which retreated to the north that evening. Sacken's corps suffered 2,000 killed and wounded, plus 800 soldiers, 13 field guns, and six colors captured. Yorck sustained 900 casualties and French losses were around 2,000 men.