Why indian treaties were often unsuccessful

The main reason why Native American treaties were often unsuccessful was because the white settlers failed to either recognize or respect these treaties, and would simply settle Native lands without government permission. 

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful