The governments of Iraq and Iran signed a memorandum of understanding in Geneva on Thursday aimed at tracing persons missing in the 1980-1988 war, the International Committee of the Red Cross (ICRC) said.
This is the first time that such a document has been signed by both of the countries, together with the ICRC, the humanitarian agency said in a statement.
"We welcome the document signed today as an important step towards easing the heavy burden of thousands of bereaved Iraqi and Iranian families who still do not know what happened to their missing relatives," said Beatrice Megevand-Roggo, the ICRC's head of operations for the Middle East and North Africa.
The document establishes a clear framework for collecting information and sharing it between the two countries, and for handing over mortal remains.
These tasks will be performed jointly by experts from both countries with ICRC support.
"The ICRC fully supports this process, and we will not stop following up on this issue until every family finds closure," said Megevand-Roggo.