Guerrilla warfare is not a new phenomenon and history is witness to its repeated occurrence. In the modern era, it acquired prominence during the Napoleonic Wars which led to an examination of its role by leading nineteenth-century thinkers including Clausewitz, Jomini, Marx and Engels. Over the course of the subsequent century, the concept and practice of guerrilla warfare was integrated within social, economic and political programmes that aimed to overthrow established authority and transform society through an armed struggle.