The Battle of the Little Bighorn occurred during the Great Sioux War of 1876, a conflict rooted in decades of displacement and territorial conflict. The Lakota Sioux, Northern Cheyenne, and Arapaho tribes had been pushed westward by U.S. military action around Fort Laramie and were responding to white encroachment into the Black Hills, which the Lakota considered sacred. The battle took place on lands that these Native American tribes had occupied since 1851, though notably without consent from the local Crow tribe, which held a treaty claim to the area. The presence of these tribes on Crow territory reflected the broader pattern of Native American displacement—as early as 1873, Crow chief Blackfoot had already called for U.S. military action against what he viewed as native intruders.
The engagement occurred on June 25–26, 1876, along the Little Bighorn River in the Crow Indian Reservation in southeastern Montana Territory. The battle pitted combined forces of the Lakota Sioux, Northern Cheyenne, and Arapaho against the 7th Cavalry Regiment of the United States Army. The conflict is known by multiple names reflecting different perspectives: Americans called it "Custer's Last Stand," while the Lakota and other Plains Indians referred to it as the Battle of the Greasy Grass.
The battle resulted in the defeat of U.S. forces and became the most significant military action of the Great Sioux War of 1876. This outcome marked a major turning point in the broader conflict between the United States and the Plains Indian tribes during the Indian Wars period.
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.
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