What conflicts did American settlers and Mexico have?

Settlers went into conflict with the Mexican government because they were planters who brought slaves. Mexico had abolished slavery before and refused this practice. Texas later became independent shortly and joined the USA in 1845.

Native americans is the answer and have you ever heard of google

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