Implantación territorial y análisis arquitectónico de los búnkeres del Subsector IV del estrecho de Gibraltar (Conil, Vejer y Barbate)

The fortified system executed on the north bank of the Strait of Gibraltar from 1939 pursued two objectives: an offensive one, for which coastal batteries and lighting projectors were installed; and a defensive one, for which around four hundred reinforced concrete bunkers were built for machine guns and / or anti-tank guns along the coastal strip that runs from San Roque to Conil de la Frontera.