In early February Napoleon fought his Six Days' Campaign, in which he won multiple battles against numerically superior enemy forces marching on Paris. However, he fielded less than 80,000 soldiers during this entire campaign against a Coalition force of between 370,000 and 405,000 engaged in the campaign.

The Six Days Campaign was a final series of victories by the forces of Napoleon I of France as the Sixth Coalition closed in on Paris. Napoleon inflicted four defeats on Blücher's Army of Silesia in the Battle of Champaubert, the Battle of Montmirail, the Battle of Château-Thierry, and the Battle of Vauchamps. Napoleon's 30,000-man army managed to inflict 17,750 casualties on Blücher's force of 50,000–56,000.The advance of the Army of Bohemia under Prince Schwarzenberg toward Paris compelled Napoleon to abandon his pursuit of Blücher's army, which, though badly beaten, was soon replenished by the arrival of reinforcements. Five days after the defeat at Vauchamps, the Army of Silesia was back on the offensive.