Related Rule
Practice Relating to Rule 115. Disposal of the Dead
Section F. Respect for and maintenance of graves
Switzerland’s Basic Military Manual (1987) provides that “graves shall be respected” and “properly maintained”. 
Switzerland, Lois et coutumes de la guerre (Extrait et commentaire), Règlement 51.7/II f, Armée Suisse, 1987, Article 71(2) and Article 76, commentary.