The efficiency of horses is not limited to the horrors they cause to the enemy when they first meet. By the time of the Inca uprising in 1536, the Incas had learned to defend themselves against the Spanish cavalry, by ambushing and destroying the Spanish rider at close range. SUPERHERO NURSE MARVEL POSTER. But the Incas, like every other running soldier, never defeated the cavalry when out in the field. When Quizo Yupanqui, Manco’s best general, the Inca emperor, Atahualpa’s successor, besieged the Spanish army in Lima in 1536 and tried to capture the city, two Spanish cavalry attacked a force.