Соответствующая норма
Practice Relating to Rule 8. Definition of Military Objectives
Section F. Lines and means of transportation
Italy’s LOAC Elementary Rules Manual (1991) includes “military means of transportation” among military objectives. 
Italy, Regole elementari di diritto di guerra, SMD-G-012, Stato Maggiore della Difesa, I Reparto, Ufficio Addestramento e Regolamenti, Rome, 1991, § 4.