Many AIM chapters remain committed to confronting government and corporate forces that they allege seek to marginalize indigenous peoples. They have challenged the ideological foundations of national holidays, such as Columbus Day and Thanksgiving. AIM argues that Thanksgiving should be a National Day of Mourning, and protests what it perceives to be the continuing theft of indigenous peoples’ territories and natural resources. AIM has helped educate people about the full history of the US and assert the Native American perspective in U.S. history. Its efforts are recognized and supported by countless institutional leaders in politics, education, arts, religion, and media.