Right-wing paramilitary troops of the Bloque Metro in the hills of the department of Antioquia. The Bloque Metro are one of several right-wing groups of self-named 'Autodefensas' - Self-defences. Sworn enemies of the country's left-wing guerrillas, these groups are often accused of working hand-in-glove with State security forces in their fight against the guerrilla insurgents and their sympathisers.