In 1890, the US government feared an imminent Indian uprising among the displaced Sioux people. General Nelson A. Miles reported from the field summarizing the issue at hand. The government was failing to fulfill the terms of the treaty they had coerced the Indians into signing, and as a result the people were starving. With this earnest message, Miles implores Congress to make good on their promise, thus preventing the outbreak.
Nelson Appleton Miles (August 8, 1839 – May 15, 1925) was an American military general who served in the American Civil War, the American Indian Wars, and the Spanish–American War. From 1895 to 1903, he served as the last Commanding General of the United States Army before the office was abolished.
This is an except from a report made by General Miles on the causes of the Sioux and Cheyenne uprisings. Bottom line... the government (read as politicians) failed to keep its treaty obligations and a lot of people died. People aren't just going to sit and starve to death simply because the government can't seem to get around to keeping its promises to them... especially after they were cheated out of their land, which undoubtedly happened. Granted, they didn't have that much of a choice, but the government did promise and then failed to keep that promise.
I might listen to this audiobook again for reference.