Defensa Interior was a militant anarchist organisation, founded in September 1961 by the congress of the Movimiento Libertario Español (Spanish Libertarian Movement). It was disbanded by their 1965 congress.

The aim of DI was to fight the regime of General Francisco Franco.

Defensa Interior was a precursor to later anarchist groups such as the First of May Group

First of May Group

The First of May Group was an anarchist anti-Franco resistance movement which took militant action against the Spanish dictator's regime. Formed in 1966 by exiles dissatisfied with what they perceived as the quietism of other opposition groups, actions attributed to the group include the occupation...

, GARI

Gari

Gari may refer to:*Gari , a Japanese condiment*Gari , a bivalve mollusc group*Gari , a cart*Garri, a West African flour*A crater on MarsIn geography:*Gari, Mali*Gari, Russia*Gari , a village near Kruševac, Serbia...

, and the Angry Brigade .