Hey Julia,
The content of your article is really good. I like how you have formatted your article by talking about the before, during, and after of the Comanche Campaign, which gives the reader a good background leading up to the campaign. I would only suggest maybe talking a little bit more in the aftermath about the reservation because it is mentioned in the intro paragraph so you may just want to touch on that a bit more. I think this article would be great with a map as well to help the reader picture visually where the campaign was many fought, and showing the homelands of the Comanche. Other than that I really like your article and would rate it about a 4, with only minor things to change.
Libby