Mao and the theoretical foundation of the "irregular war" -- "Irregular war" (terrorism or guerrilla warfare) in Latin America -- The Israeli-Palestinian conflict: will the political negotiation replace the armed conflict? -- How can we explain the events of 11 September 2001? -- The Chechens struggle against Russia: a nationist conflict overtaken by the Islamists -- Conflict between center and periphery: the case of the Basque struggle against Spain -- What lessons can be learned for the Irish conflict? -- Romania's popular war doctrine, dictators and the search for legitimacy: are there any lessons that can be learned from these experiences? -- Conclusion: how can we win the war on terrorism?