American Indian Movement (AIM) button recognizing the eighty-three years between the massacre of Lakota people by the US government at Wounded Knee, South Dakota, and the occupation of the same site by AIM members in 1973.

American Indian Movement (AIM) members honor those who died in the Wounded Knee occupation with a gun salute. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

AIM members gather at Wounded Knee to commemorate the twenty-fifth anniversary of the Wounded Knee occupation (1973) in South Dakota. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

An American Indian Movement (AIM) flag flies at Wounded Knee, South Dakota, 1998. AIM members adopted the upside-down US flag, a signal of distress, as a symbol of their movement. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

The American Indian Movement flag flies over a camp of tipis at Wounded Knee, South Dakota. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

Clyde Bellecourt addresses the twenty-five-year commemoration of the AIM occupation of Wounded Knee, South Dakota. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

Clyde Bellecourt (left) and Dennis Banks (right) field calls from reporters at Pine Ridge Tribal Headquarters. Photograph by Jon Lurie, 1998. Used with the permission of Jon Lurie.

American Indian Movement (AIM) button from the AIM powwow held at the Minneapolis American Indian Center, December 29, 1990.

American Indian Movement (AIM) button from the AIM powwow at the Minneapolis American Indian Center, December 29, 1990.

Tipi with American Indian Movement (AIM) sign on the grounds of the Washington Monument, Washington, DC, during the "Longest Walk" (1978). Original in the US New & World Report collection in the Library of Congress’s prints and photographs division.