Three Affiliated Tribes

The Three Affiliated Tribes, also known as the Mandan, Hidatsa, and Arikara Nation, is a federally recognized tribal government that provides a range of governmental services to its enrolled members and the communities residing on the Fort Berthold Reservation. Core services include tribal administration, law enforcement, and judicial functions carried out through a tribal court system. Health care is delivered in partnership with the Indian Health Service, operating a clinic and wellness programs for the population. Education services are supported by the Nueta Hidatsa Sahnish College, which offers higher education and vocational training to tribal members. The tribe administers housing assistance programs and manages infrastructure such as roads, water systems, and broadband initiatives on the reservation. Economic development efforts encompass the oversight of natural resources, including agriculture, oil and gas production, and renewable energy projects, as well as the operation of the 4 Bears Casino and Lodge, which generates revenue for tribal government. Cultural preservation is a key focus, with language revitalization projects, historic site maintenance, and cultural events that reinforce the Mandan, Hidatsa, and Arikara identities.

Governance is structured under a tribal constitution that establishes an elected tribal council responsible for legislative and executive authority over the reservation. The tribal council works alongside an executive branch that implements policies and manages day‑to‑day operations of tribal departments. Judicial authority resides in the tribal court, which handles civil and criminal matters arising under tribal law. As a sovereign nation, the Three Affiliated Tribes exercise self‑governance independent of any parent corporation or external ownership, deriving authority from their inherent tribal status and federal recognition. The tribe has demonstrated notable competencies in managing complex resource‑based enterprises, particularly in the energy sector, while maintaining robust health, education, and public safety departments. The ransomware attack on April 28, 2021, compromised servers and rendered critical files, emails, and operational information inaccessible, highlighting the cybersecurity challenges faced by tribal governments. This incident reflects a broader trend of ransomware targeting tribal entities across the United States, underscoring the need for strengthened information security measures in communities that may have limited centralized cybersecurity resources.