I see your point there Kavhan Isbul and I know that European knights did commit some very foolish charges (like at Lake Peipus or Durbe to add more to the list). What I reacted in the first place was the statement that Byzantium was the only kingdom/empire in Europe that used tactics.

Nicopolis however is a very interesting battle. By this time most Europeans must have learnt that cavalry charges weren't very effective thanks to such battles as Bannockburn, Courtrai, Morgarten, Crécy and Poitiers, yet the "Franks" still managed to inflict relatively high casualties on the Ottomans.