From publisher blurb:
Clash of Arms: Cavalry is a sourcebook that brings a historical flavor to your fantasy games. This supplement presents a new core class, the Cavalryman and then details the evolution of cavalry warfare through the ancient, classical and medieval periods. The necessary equipment to control a mount in battle is detailed, including the chariot, the bridle, saddle, stirrup and spurs, along with notes on when each piece of equipment appeared and the function of each to the mounted warrior. Finally, rules on generating new horse breeds are given so that each horse can be as individual as the man who rides him into battle.