What brought the genocide to an end or lessened the intensity of the conflict?

It is the world pressure that stops this

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.

the answer is b just took the test