One of Lincoln’s first orders as president was to withdraw federal troops from the West so that they could protect Washington, D.C. Recognizing that this would make it impossible for the army to keep white interlopers from intruding on Indian land, as treaties required it to do, Indian leaders begged Lincoln to reverse this decision, but to no avail. Inevitably, conflict flared in the West between Native Americans and white settlers, with disastrous results. During the Civil War, the Sioux killed hundreds of white farmers in Minnesota before being subdued by the army. After a military court sentenced more than 300 Indians to death, Lincoln commuted the sentences of all but 38. But their hanging in December 1862 remains the largest official execution in American history. In 1864, a unit of Colorado soldiers under the command of Colonel John Chivington attacked a village of Cheyenne and Arapaho Indians at Sand Creek, killing perhaps 400 men, women, and children.
The Union army also launched a campaign against the Navajo in the Southwest, destroying their orchards and sheep and forcing 8,000 people to move to a reservation set aside by the government. The Navajo’s Long Walk became as central to their historical experience as the Trail of Tears to the Cherokee (see Chapter 10). Unlike the eastern Indians, however, the Navajo were eventually allowed to return to a portion of their lands.

A Union soldier stands guard over a group of Indians during the Navajo’s Long Walk, in which the army removed them from their New Mexico homeland to a reservation hundreds of miles away.
Ironically, the Confederacy, although defending slavery, treated Native Americans more fairly than the Union. The Confederate Constitution provided for Indian tribes to elect representatives to Congress, and the Davis administration removed state jurisdiction over Indian reservations, allowing them complete self-government. Some tribes that owned slaves, like the Cherokee, sided with the Confederacy. After 1865, they were forced to cede much of their land to the federal government and to give some land to their former slaves (the only slaveowners required to do so).