Ontroversy over American Indian imagery and stereotyping in the Military.

There is much information on Mascots in sports and colleges. I wish to research the controversy in other areas such as the military. Native names which have been used such as Commanche and Black Hawk for example as well as stereotyping such as Native Americans in the army being put on point during Vietnam or WWII, as they were thought to be closer to the ground. These are just two ideas I have but as long as the essay does not talk about sports and colleges i will be happy.
Many thanks