Which movement in the 1960s advocated for Native American rights and sovereignty?

The American Indian Movement (AIM) was pivotal in advocating for Native American rights and sovereignty during the 1960s. Founded in 1968, AIM sought to address issues such as treaty rights, police harassment, and the overall treatment of Native Americans by the U.S. government. The movement worked to enhance awareness of Native American culture and identity, and it organized protests and advocacy efforts to challenge injustices faced by Native communities. AIM’s activism included high-profile events like the occupation of Alcatraz Island and the Wounded Knee incident, which drew national attention to the plight of Native Americans and their struggle for recognition and rights. This makes it the correct choice in identifying the specific movement focused on Native American issues during that era.