Related Rule
Colombia
Practice Relating to Rule 85. The Use of Incendiary Weapons against Combatants
Colombia’s Basic Military Manual (1995) prohibits the use of weapons which “cause unnecessary and indiscriminate, widespread, long-term and severe damage to people and the environment. This includes, inter alia: … incendiary weapons, whose production, importation, possession and use are also prohibited by Article 81 of the National Constitution.” 
Colombia, Derecho Internacional Humanitario – Manual Básico para las Personerías y las Fuerzas Armadas de Colombia, Ministerio de Defensa Nacional, 1995, pp. 49–50.
In 1977, during a debate in the First Committee of the UN General Assembly, Colombia supported the elimination of incendiary weapons. 
Colombia, Statement before the First Committee of the UN General Assembly, UN Doc. A/C.1/32/PV.21, 2 November 1977, p. 11.
Colombia’s Basic Military Manual (1995) prohibits the use of weapons which
cause unnecessary and indiscriminate, widespread, long-term and severe damage to people and the environment. This includes, inter alia: … incendiary weapons, whose production, importation, possession and use are also prohibited by Article 81 of the National Constitution. 
Colombia, Derecho Internacional Humanitario – Manual Básico para las Personerías y las Fuerzas Armadas de Colombia, Ministerio de Defensa Nacional, 1995, pp. 49–50.