Соответствующая норма
Practice Relating to Rule 117. Accounting for Missing Persons
Section C. International cooperation to account for missing persons
According to the Report on the Practice of Australia, diplomatic correspondence and press releases show that, in 1984, a joint Australian-Vietnamese operation was launched “to search for the remains and resolve the cases” of six Australian personnel listed as “missing in action” in Viet Nam and “to follow up any other case which might subsequently be drawn to its attention”. The report states that the motive for the operation appears to be based primarily on political considerations (i.e. improvement of bilateral relations with Viet Nam). 
Report on the Practice of Australia, 1998, Chapter 5.2.