>>11629826Horse is generally weak against tight formations, especially spearmen. In those days, to win a battle, an army needed significantly more foot than horse, not only because foot is less expensive, but because if you have too much horse and not enough foot, there will be no way to break up their tight formations, by forcing them to maneuver or by forcing them to pay attention to the scrum. When the formation becomes loose or distracted, that is when horse is effective. Horse is also very good at scouting and can be very effective slingers.