What did Incan emperors force conquered peoples to do in order to unify their empire?

Incan emperors enforced a policy of cultural assimilation among conquered peoples to unify their empire. They required these groups to learn the Quechua language, adopt Incan customs, and participate in state-sponsored religious practices. Additionally, the Incas implemented a system of mit'a, which obligated subjects to provide labor for state projects, further integrating them into the Incan societal framework. This approach helped to strengthen the empire by fostering loyalty and a sense of common identity among diverse populations.