What was Knox’s plan to reduce the Creek and other eastern tribes to “the will of the United States”

I am an international student: please use VERY simple English, format and concept !
But still make up something nice and with an interesting point of view.
thanks
HERE IS THE QUESTION FOR THE ESSAY:
“What was Knox’s plan to reduce the Creek and other eastern tribes to “the will of the United States”? Would you call these proposals “humane,” and why?”