Related Rule
Italy
Practice Relating to Rule 106. Conditions for Prisoner-of-War Status
Section B. Levée en masse
Italy’s IHL Manual (1991) states that participants in a levée en masse are considered combatants provided they “carry arms openly and respect the laws and customs of war”. 
Italy, Manuale di diritto umanitario, Introduzione e Volume I, Usi e convenzioni di Guerra, SMD-G-014, Stato Maggiore della Difesa, I Reparto, Ufficio Addestramento e Regolamenti, Rome, 1991, Vol. I, § 4(c).