* Provide soldiers for the Inca army: The leaders of groups that became part of the Inca Empire had to provide soldiers for the Inca army. The number of soldiers required also varied depending on the size and population of the group.
* Adopt the Inca religion: The leaders of groups that became part of the Inca Empire had to adopt the Inca religion, which was based on the worship of the sun god Inti. They were also required to build temples and shrines to Inti and to participate in religious ceremonies.
* Learn the Inca language: The leaders of groups that became part of the Inca Empire had to learn the Inca language, which was Quechua. This was important for communication with Inca officials and for understanding the laws and regulations of the Inca Empire.
* Obey the Inca laws: The leaders of groups that became part of the Inca Empire had to obey the Inca laws, which were very strict. They were not allowed to rebel against the Inca or to engage in any activities that could be seen as a threat to the Inca Empire.