Related Rule
Cameroon
Practice Relating to Rule 4. Definition of Armed Forces
Cameroon’s Disciplinary Regulations (1975) states:
Members of the Armed Forces in organized units, francs-tireurs detached from their regular units, commando detachments and isolated saboteurs, as well as voluntary militias, self-defence groups and organized resistance formations are lawful combatants on condition that those units, organizations or formations have a designated commander, that their members wear a distinctive sign, notably on their clothing, that they carry arms openly and that they respect the laws and customs of war. 
Cameroon, Règlement de discipline dans les Forces Armées, Décret No. 75/700, 6 November 1975, Article 30.
Cameroon’s Instructor’s Manual (2006) states:
Three fundamental principles characterize an armed engagement. [These include:]
- The physical engagement of different forces. These forces are characterized by the existence of a recognizable commander, the wearing of a uniform or the open carrying of arms and respect for a strict [military] discipline. 
Cameroon, Droit des conflits armés et droit international humanitaire, Manuel de l’instructeur en vigueur dans les forces de défense, Ministère de la Défense, Présidence de la République, Etat-major des Armées, 2006, p. 95, § 352.31; see also p. 137, § 412.29.
Cameroon’s Disciplinary Regulations (2007) states:
Article 30: Definition
Members of armed forces in organized units, franc-tireurs detached from regular units, commando detachments and isolated saboteurs, as well as the members of voluntary militias, self-defence groups and organized resistance formations, are lawful combatants.
It is sufficient that those units, organizations or formations have a designated commander, that their members wear a distinctive sign, notably on their clothing, that they carry their arms openly and that they respect the laws and customs of war. 
Cameroon, Règlement de discipline générale dans les forces de défense, Décret N° 2007/199, Président de la République, 7 July 2007, Article 30.