Milhaud's Cuirassier corps and Lobau's (VI.) corps were south of the Sambre, between Charleroi and Jamioulx.
to attack whatever force Blucher might command, and the Guard and Milhaud would be at hand to act as reserve.
The Guard and Milhaud were in hand at Fleurus.
Amand, whilst Gerard attempted to storm Ligny; on the right Grouchy held Thielemann in play, and in the centre near Fleurus were the Guard and Milhaud in reserve, close to the emperor's headquarters on the mill.
Some delay was occasioned by a thunderstorm; but, as this passed over, the guns opened and the Old Guard and Milhaud's cuirassiers proceeded to form up opposite to Ligny.