Final answer:
The representation of Native American tribes during treaty negotiations became a problem due to a lack of proper representation, leading to unfair treaties. Chiefs representing their communities did not always have the authority to make binding decisions for all Native people, and many tribes faced pressure to accept the terms of the treaty. The U.S. government also failed to honor the majority of these treaties.
Step-by-step explanation:
The representation of Native American tribes during treaty negotiations became a problem due to a lack of proper representation, leading to unfair treaties. Chiefs from individual villages represented their communities, but they did not always have the authority to make binding decisions for all Native people. Many tribes felt they had no choice but to accept the terms of the treaty, as refusing to sign could result in the U.S. army forcibly removing them or losing out on securing land and resources for future generations. The U.S. government also failed to honor the majority of these treaties, which further exacerbated the problems faced by tribal communities.