Related Rule
Practice Relating to Rule 17. Choice of Means and Methods of Warfare
Italy’s LOAC Elementary Rules Manual (1997) states: “To restrict civilian casualties and damages, the means of combat and weapons shall be adapted to the target.” 
Italy, Regole elementari di diritto di guerra, SMD-G-012, Stato Maggiore della Difesa, I Reparto, Ufficio Addestramento e Regolamenti, Rome, 1991, § 53; see also § 45.