After Custer's defeat at the Battle of the Little Bighorn (known to the Lakota as Greasy Grass), the U.S. Army stepped up its campaign against western tribes. In a series of military engagements as well as massacres, the Army defeated powerful tribes such as the Lakota and Apache. By the time of the massacre at Wounded Knee in 1890, on the Pine Ridge Reservation in South Dakota, violent Native American resistance had almost completely ended.

Map by National Geographic Society

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