The Nez Perce War was an armed conflict in 1877 in the Western United States between several bands of the Nez Perce tribe and their allies against the United States Army. The conflict stemmed from the refusal of several bands of the Nez Perce, dubbed "non-treaty Indians," to give up their ancestral lands in the Pacific Northwest and move to an Indian reservation in Idaho Territory. This forced removal violated the 1855 Treaty of Walla Walla, which had granted the tribe 7.5 million acres of their ancestral lands and the right to hunt and fish on lands ceded to the U.S. government.
After the first armed engagements in June 1877, the Nez Perce embarked on an arduous trek north initially to seek help with the Crow tribe. When the Crows refused to provide aid, the Nez Perce sought sanctuary with the Lakota led by Sitting Bull, who had fled to Canada in May 1877 to avoid capture following the 1876 Battle of the Little Bighorn. The Nez Perce were pursued by elements of the U.S. Army throughout this period.
The war was fought between June and October 1877, representing a significant clash between Native American tribes resisting forced relocation and federal military forces. The conflict demonstrated the broader patterns of Indian removal policies of the era and the determination of non-treaty tribes to resist government mandates regarding their lands and way of life.
The Indian Wars encompass more than three centuries of armed conflict between the United States government, American settlers, and Indigenous nations — from the Powhatan Wars of the 1620s through the final Plains campaigns of the late 19th century. The eastern conflicts — King Philip's War (1675–1676), the Tuscarora War (1711–1715), and the Creek and Seminole Wars — largely ended organized Indigenous resistance east of the Mississippi by the 1840s. On the Great Plains, the Sioux Wars (1854–1890), Red River War (1874–1875), and Nez Perce War (1877) followed the displacement wrought by the transcontinental railroad and the near-extinction of the American bison — an estimated 30 to 60 million animals reduced to fewer than 1,000 by 1890. The Ghost Dance religious movement and the massacre at Wounded Knee (December 29, 1890), in which US cavalry killed approximately 250 Lakota men, women, and children, marked the effective end of armed resistance. The Dawes Act (1887) allotted reservation land to individual families, opening millions of acres to white settlement and reducing Indigenous landholdings by about two-thirds over the following decades.
Several US soldiers killed
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