After returning there were several cases of racist attacks against these african-american soldiers by other white soldiers.
Also during red summer mass violence and mob violence occurred and over the course of 3 days hundreds of black people we killed.
So to be honest there was a lot of racism and segregation was still present.
The purpose of treaties between the U.S. Government and Indians was to first of all keep peace between the two and give colonists permission to settle Indian land. Hope this helps!
