How did the Inca empire grow?

The Inca Empire expanded through a combination of military conquest, strategic alliances, and effective administration. They utilized a well-organized army to defeat neighboring tribes, often offering them the option to join the empire peacefully. Additionally, the Incas built an extensive road system that facilitated communication and trade, further integrating conquered regions. Their ability to promote a shared identity and implement agricultural innovations also helped consolidate their control over vast territories.