When Europeans arrived in the Americas during the 16th and 17th centuries, they found that some Native American communities had created alliances, or confederacies. These agreements allowed the members of the confederacy to control trade and keep the peace in their region. This book explains how these confederacies were formed, discusses some famous examples, such as the Iroquois Confederacy, and explains how Native American groups continue to work together for the good of all communities in the present day.