Related Rule
Argentina
Practice Relating to Rule 105. Respect for Family Life
Argentina’s Law of War Manual (1969) contains provisions specifying that parties to a conflict must assist members of families to keep in contact and, if possible, facilitate the process of family reunification. 
Argentina, Leyes de Guerra, RC-46-1, Público, II Edición 1969, Ejército Argentino, Edición original aprobado por el Comandante en Jefe del Ejército, 9 May 1967, § 4.009.
Argentina’s Law of War Manual (1989) provides:
The High Contracting Parties and the Parties to the conflict shall facilitate in every possible way the reunion of families dispersed as a result of armed conflicts and shall encourage in particular the work of the humanitarian organizations engaged in this task. 
Argentina, Leyes de Guerra, PC-08-01, Público, Edición 1989, Estado Mayor Conjunto de las Fuerzas Armadas, aprobado por Resolución No. 489/89 del Ministerio de Defensa, 23 April 1990, § 4.14.