How did president grant’s approach to interacting with native americans differ from his predecessors when he took office in 1869?

It is possible to say that the approach to interact with Native Americans that was held by President Grant is highly different than the ones held by his predecessors because of his intentions were focused on not talking directly to the Native Americans, but to Christian missionaries who were incharged of the Natives' regions. In contrast, other Presidents kept the indigenous authorities and approched directly taliking to these.

general allotment act (dawes act) february 8, 1887

amendment to the dawes act, february 28, 1891

commission to the five civilized tribes (dawes commission), march 3, 1893