Practice relating to Rule 66. Non-Hostile Contacts between the Parties to the Conflict
Belgium’s Field Regulations (1964) provides: “It is prohibited to enter in contact with the enemy, except with deserters, the wounded and parlementaires.”
Belgium’s Law of War Manual (1983) states:
Relations between military commanders in the field of operations are necessary … for military or humanitarian purposes …
It is indispensable that, from both sides, these relations [intercourse between belligerents] be marked by the most scrupulous good faith and that no party takes any advantage from these relations that the other party does not intend to concede.