Related Rule
Colombia
Practice Relating to Rule 19. Control during the Execution of Attacks
Colombia’s Basic Military Manual (1995) states: “An attack shall be suspended or cancelled if it appears that it will cause superfluous damage to civilians and civilian objects regarding the expected military advantage.” 
Colombia, Derecho Internacional Humanitario – Manual Básico para las Personerías y las Fuerzas Armadas de Colombia, Ministerio de Defensa Nacional, 1995, p. 47.