The Battle of Champaubert ( 10 February 1814 ) was the opening engagement Hostile_encounter of the Six Days ' Campaign .

Champaubert is located in France , west of Châlons-en-Champagne and east of Meaux .

Allied lapses in communication and Blücher 's overconfidence left Olsufiev 's corps isolated near Champaubert when Napoleon 's army lunged Self_motion from the south to deal it a crippling blow Attack .