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Colombia
Practice Relating to Rule 54. Attacks against Objects Indispensable to the Survival of the Civilian Population
Section C. Attacks in case of military necessity
Colombia’s Basic Military Manual (1995), in a chapter entitled “Provisions of IHL applicable in Colombia”, states that “in all armed conflicts” it is prohibited to order a scorched earth policy as a method of combat. 
Colombia, Derecho Internacional Humanitario – Manual Básico para las Personerías y las Fuerzas Armadas de Colombia, Ministerio de Defensa Nacional, 1995, p. 49.