waterloo in belgium, when napoleon bonaparte lost to british and russian forces, leading directly to the imperva political death. and it also put france onto a completely different part of history. where asking now what exactly went wrong for the french. take a look. >> shots, shells, and cavalry charge. the armies of a british coalition and france have taken to the field of atul of waterloo. napoleon bonaparte's most ignominious defeat. the french emperor fielded an army of some 70,000 against the duke of wellington's similar numbers. >> napoleon had a great plan. everything pointed towards a huge victory. but from the moment it went into action, everything started to come apart at the names. >> the french soldiers were exhausted after spending a night in the pouring rain. what's more, napoleon was so sure of his victory he failed to scout the terrain. >> english troops were entirely hidden from view. napoleon did not aware enemy troops were. it was typical of wellington. he always hid his troops. >> around 140,000 soldiers. by evening, more than 10,000 lay dead. the next french arrow would rep