How did 168 Spanish soldiers defeat the Inca Empire with 80,000 troops

The defeat of the Inca Empire by 168 Spanish soldiers despite facing 80,000 troops was due to military superiority, alliances with indigenous groups, strategic maneuvers, and the impact of disease. The Spanish possessed advanced weaponry and tactics, exploited divisions within the Inca Empire, and strategically captured the Inca Emperor Atahualpa. Additionally, the introduction of diseases for which the Inca had no immunity caused widespread devastation, further weakening their ability to resist. These factors combined to give the Spanish a significant advantage and led to the downfall of the Inca Empire.