Related Rule
Practice relating to Rule 66. Non-Hostile Contacts between the Parties to the Conflict
Section A. General
Hungary’s Military Manual (1992) stresses that non-hostile contacts with the enemy may be “direct or through an intermediary”, for information, warning, summons, local arrangements or the creation of neutralized zones. 
Hungary, A Hadijog, Jegyzet a Katonai, Föiskolák Hallgatói Részére, Magyar Honvédség Szolnoki Repülötiszti Föiskola, 1992, p. 79.