Oglala elders relate stories about the origin of the name "Oglala" and their emergence as a distinct group, probably sometime in the 18th century.
Conflict with European settlers In the early 19th century, Europeans and Americans passed through Lakota territory in increasing numbers. They sought furs, especially
beaver fur at first, and later
bison fur. The fur trade changed the Oglala economy and way of life. In 1868, the United States and the
Great Sioux Nation signed the
Fort Laramie Treaty. In its wake, the Oglala became increasingly polarized over how they should react to continued American encroachment on their territory. This treaty forfeited large amounts of Oglala land and rights to the United States in exchange for food and other necessities. Some Lakota bands turned to the Indian agencies — institutions that later served
Indian reservations – for rations of beef and subsistence foods from the US government. Other bands held fast to indigenous lifeways. Many Lakota bands moved between these two extremes, coming in to the agencies during the winter and joining their relatives in the north each spring. These challenges further split the various Oglala bands. The influx of white settlers into the
Idaho Territory often meant passing through Oglala territory, and, occasionally, brought with it its perils, as
Fanny Kelly described in her 1871 book,
Narrative of My Captivity among the Sioux Indians.
Early reservation The
Great Sioux Reservation was broken up into five portions. This caused the
Red Cloud Agency to be moved multiple times throughout the 1870s until it was relocated and renamed the
Pine Ridge Reservation in 1878. By 1890, the reservation included 5,537 people, divided into a number of districts that included some 30 distinct communities.
2022 temporary Christian missions suspension In July 2022, the Oglala Sioux Tribal Council effected a temporary suspension of Christian missions on the Pine Ridge Reservation. The council called for an investigation into the financial practices of the Dream Center Missionary, and the Jesus is King Mission was ejected from the reservation for spreading pamphlets that the tribe saw as hateful.
Members detained by Immigration and Customs Enforcement During the protests against
Immigration and Customs Enforcement in
Minneapolis after the
killing of Renée Good, five tribally enrolled citizens of the Oglala Lakota nation were detained. Tribal President Frank Star released a statement on January 9, 2026 saying that five enrolled members were taken into custody near the Little Earth housing complex in Minneapolis. President Star noted that the arrest did not have any legal merit because the
Indian Citizenship Act of 1924 asserts that all Native people born within the territorial limits of the United States are recognized as US citizens by birthright. At the time, one tribal member's arrest was video recorded and he was subsequently released, and the location of the other four members was unknown. Minnesota Lieutenant Governor
Peggy Flanagan responded to the arrest by telling local media that she believed the detentions reflected racial profiling. As of January 14, 2026, one of the four missing men was released and the remaining three were located at the ICE detention center at
Fort Snelling. This added to the historical significance of colonial acts as it is the site of the government once used to imprison hundreds of Indigenous Americans during and after the
Dakota War of 1862. The
United States Department of Homeland Security released the first names of the missing men to the Oglala Sioux Tribe, but refused to release further information unless the tribe "entered into an immigration agreement with ICE". ==Social organization==