On 11 February, Kaptzevich and Kleist turned around and marched back to Bergères. Blücher authorized Yorck and Sacken to withdraw via Château-Thierry toward Reims where his army would reassemble. MacDonald sent Antoine-Louis Decrest de Saint-Germain with part of his cavalry across the Marne to Coulommiers by a roundabout route. The remainder of his cavalry under Horace Sebastiani was unable to cross at La Ferté-sous-Jouarre because Sacken had broken its bridge. Napoleon launched his troops after the beaten Allies at 9:00 am on 12 February. Marshal Édouard Mortier commanded the pursuit on the main highway while Napoleon personally led another column farther west through Rozoy. The French emperor ordered MacDonald to seize the bridge at Château-Thierry.