Battle of Château-Thierry

Pursuing troops beaten at Montmirail, Napoleon caught coalition forces at Château-Thierry on the banks of the Marne. He launched a vigorous attack to prevent their retreat toward Soissons. The Allies were surprised while crossing the river. French cavalry played a key role, capturing many guns and prisoners. The victory reinforced the image of French invincibility in this lightning campaign.

After defeats at Champaubert and Montmirail, Sacken's Russians and Yorck's Prussians retreated hastily northward. Napoleon sought to crush them before they could cross the Marne. Château-Thierry was a strategic crossing. Bridges there were essential for enemy evacuation. Speed of the French maneuver prevented orderly retreat.

Napoleon pressed the attack before the Allies could cross the Marne. He committed Ney's infantry in assault columns while Guard cavalry outflanked enemy positions from the south. Surprised and disorganized, Russians and Prussians were outflanked. Several units were captured near the bridge. Artillery harassed the enemy retreat from a distance.

The victory at Château-Thierry completed the dispersion of Blücher's left wing. The French army briefly regained advantage on the Paris-Reims axis. However, exhaustion of troops and limited numbers prevented Napoleon from pursuing toward total destruction of enemy corps. The Allies, though defeated, would regroup a few days later.