How people in the Inca built a vast empire?

The Inca built a vast empire through a combination of military conquests, strategic alliances, and efficient administration. They utilized a sophisticated network of roads and communication systems to connect distant regions, facilitating trade and the movement of troops. The Incas also integrated conquered peoples by promoting their local customs while imposing the Quechua language and Inca religion, fostering loyalty. Additionally, their agricultural innovations and resource management enabled them to support a large population and sustain their empire.