The Base is a white nationalist accelerationist militant group led by Rinaldo Nazzaro and operated out of St. Petersburg, Russia. Formed in 2018, the group seeks to establish a white ethnostate in the Pacific Northwest of the United States by accelerating societal collapse through acts of terror and violence. Following a "leaderless resistance" model, The Base operates using a decentralized cell structure to reduce vulnerability to law enforcement, allowing its members to carry out independent activities while sharing a common ideology.

Nazzaro's background as an FBI analyst and a contractor for the Department of Defense (DoD) and Department of Homeland Security (DHS) raises significant concerns about insider threats, given the potential misuse of his experience and training for extremist purposes. The group’s recruitment tactics are sophisticated, leveraging modern communication platforms, encrypted chats, and propaganda materials to attract new members, including those with military experience. Training camps further prepare recruits with paramilitary skills, ensuring that members are ready for potential acts of violence.

The Base’s ideology is rooted in white nationalism, accelerationism, and a blend of occult beliefs. Members are driven by the idea that a race war is inevitable and must be hastened to create a new social order. They subscribe to literature like SIEGE and The Turner Diaries, which advocate for race war and terror as means to achieve their goals. The group has shown an interest in attacking critical infrastructure, such as transportation and water supplies, and targeting urban centers with large minority populations to provoke fear and societal instability.