page_title: Guerrilla warfare
section_title: Foco theory
hierarchical_section_title: Guerrilla warfare / Foco theory
caption_attribution_description: English: A Nigerien rebel fighter mans a gun in northern Niger, from the Niger Movement for Justice. Photo by Phuong Tran, Voice of America reporter in Dakar.
context_page_description: Guerrilla warfare is a form of irregular warfare in which small groups of combatants, such as paramilitary personnel, armed civilians, or irregulars, use military tactics including ambushes, sabotage, raids, petty warfare, hit-and-run tactics, and mobility, to fight a larger and less-mobile traditional military. Guerrilla groups are a type of violent non-state actor.
context_section_description: Why does the guerrilla fighter fight? We must come to the inevitable conclusion that the guerrilla fighter is a social reformer, that he takes up arms responding to the angry protest of the people against their oppressors, and that he fights in order to change the social system that keeps all his unarmed brothers in ignominy and misery.
  — Che Guevara
  In the 1960s, the Marxist revolutionary Che Guevara developed the foco (Spanish: foquismo) theory of revolution in his book Guerrilla Warfare, based on his experiences during the 1959 Cuban Revolution. This theory was later formalised as "focal-ism" by Régis Debray. Its central principle is that vanguardism by cadres of small, fast-moving paramilitary groups can provide a focus for popular discontent against a sitting regime, and thereby lead a general insurrection. Although the original approach was to mobilize and launch attacks from rural areas, many foco ideas were adapted into urban guerrilla warfare movements.
caption: A Tuareg rebel fighter in northern Niger, 2008
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