Related Rule
Ecuador
Practice Relating to Rule 5. Definition of Civilians
Ecuador’s Naval Manual (1989) provides that the notion of non-combatant applies “primarily to all individuals who are not part of the armed forces and who … abstain from committing hostile acts and from giving direct support to such acts. In this context, non-combatants and the civilian population, are, generally, synonymous.” 
Ecuador, Aspectos Importantes del Derecho Internacional Marítimo que Deben Tener Presente los Comandantes de los Buques, Academia de Guerra Naval, 1989, § 5.3; see also §§ 11.1 and 11.3.
The manual further specifies: “The civilian population consists of all persons not serving in the armed forces, militia, or paramilitary forces and not otherwise taking a direct part in the hostilities.” 
Ecuador, Aspectos Importantes del Derecho Internacional Marítimo que Deben Tener Presente los Comandantes de los Buques, Academia de Guerra Naval, 1989, § 11.3.