This document discusses the key leaders in the struggle for American Indian lands between the late 18th century and late 19th century. It outlines leaders who fought for Native American rights, such as Tecumseh who united tribes to defend their lands, and Sitting Bull and Crazy Horse who led resistance against U.S. seizure of the Black Hills. It also discusses pro-Native leaders like John Ross who defended Cherokee land rights in court. Meanwhile, President Andrew Jackson supported the Indian Removal Act of 1830 that displaced many Native Americans. Overall, the document provides a history of the leadership and events on both sides during the long-running conflict over ownership of Native American territories.