A woman is hogtied in the back of a moving covered wagon with her buttocks showing, at the same time a soldier who is also hogtied is trying to cover her buttocks up moving fabric with his teeth. Her butt cheeks (up to the waist), butt crack, and upper leg are fully visible.
There is a scene where a soldier rips the clothes off of a Indian woman (full frontal nudity) While she is held down by other soldiers, he tries to rape her (showing his buttocks).