Defending the Land: Causes and Effects of Red Cloud's War

Lakota chief Red Cloud gathered an army of warriors across three tribes in the Great Plains. In the late 1860s he led his forces to victory in the only successful American Indian war in the West against the United States. It resulted in a treaty to protect Lakota land and their way of life. But the U.S. government would break the treaty many times. How would it affect their lives and change the United States?