All the brigades (the 9th, 10th, 11th, and 12th) of the Prussian III Corps (Thielmann's), had, at that time, received the order to commence the general movement to the right (west). A detachment of only two battalions (the Fusilier Battalions of the 30th Regiment and of the 1st Kurmark Landwehr), under Colonel Zepelin, from the 9th Brigade, which had not yet crossed the river Dyle, was to be left in occupation of Wavre. The 12th Brigade was already in full line of march, and the 11th had just been put in motion.