Why did the incas lost to the europeans?

The Incas lost to the Europeans primarily due to advanced military technology, including firearms and steel weapons, which gave the Spanish conquistadors a significant advantage. Additionally, the spread of diseases like smallpox devastated the Inca population, weakening their society and diminishing their numbers. Internal strife and civil war, particularly between rival factions, also hindered their ability to unite against the Spanish invaders. Finally, the strategic alliances formed by the Europeans with discontented indigenous groups further facilitated their conquest.