Bases Autónomas (Autonomous Bases) was a Spanish neo-Nazi group.
Formed in Madrid in 1983, the group, self defined as anti-capitalist and Autonomous Nationalist , aimed to increase youth involvement in the neo-nazi movement . They published magazines that encouraged violent action, and used the Celtic cross as their symbol. Membership was largely made up of football hooligan Ultras and racist skinheads who operated in small cells. The violence of the group such as large scale attacks on anarchist and communist groups and several attacks on state institutions , attracted much police scrutiny and the Bases Autónomas were finally disbanded as an organization in the mid 90s.