Battalions from the Imperial Guard were moved from the main battle to prevent a rear attack, while La Haye Sainte was taken by Michel Ney.  
Troops led by Karl von Bulow reached the site at about 6 PM, pressuring the eastern French flank.  Battalions from the Imperial Guard were moved from the main battle to prevent a rear attack, while La Haye Sainte was taken by Michel Ney.  The Imperial Guard arrived at about 7 pm, but so did von Zieten's corps, which reinforced the Duke of Wellington's troops.  After Ney's forces were repulsed, the Allies advanced, forcing a French retreat at, FTP, what June 18, 1815 battle, Napoleon's final defeat?
Troops led by Karl von Bulow reached the site at about 6 PM, pressuring the eastern French flank.  
Battle of Waterloo