The western settlers could have coexisted with tribes they encountered through negotiation and peace offerings.
(That is a starter that you can use if you would like)
Tips:
- use the words in the question to start (western settlers, I think, tribes they encountered, coexisted)
- use two sides of the argument. in the case, there is the “yes, they could have coexisted with them” side and the “no, they couldn’t have coexisted with them” side. make points for both and at the end, write a conclusion explaining your personal point of view.
- always spell and grammar check
this is just what I would do, I hope it helps!!!