 Napoleon masked Wellington and massed against the Prussian army, and then after the Battle of Ligny was won, Napoleon attempted to do the same to the Allied/British army located just to the south of Waterloo.His subordinate was unable to mask the defeated Prussian army, who reinforced the Waterloo battle in time to defeat Napoleon and end his domination of Europe.It can be said that the Prussian Army under Blücher used the "maneuver de derrière" against Napoleon who was suddenly placed in a position of reacting to a new enemy threat.