Answer:
One negative of the settlement of the Northwest Territory was that it led to conflict and displacement of Native American tribes who had previously inhabited the area. As European settlers moved into the Northwest Territory, they often took over land that had been traditionally owned and occupied by Native American tribes. This led to a series of wars and conflicts between the settlers and the Native Americans, and many Native American tribes were forced to cede their land to the settlers or to move to other areas. This process of displacement and loss of land had a major negative impact on Native American communities and cultures, and it continues to be a source of tension and conflict in the region today.