Thirty-five years from the birth of Argentina's 'Dirty War'

At least 30,000 were killed or "disappeared'' before the military were forced from office after their invasion of the Falklands in 1982.

The Abuelas achieved their first breakthrough in 1984, when the first stolen grandchild, Paula Logares, was discovered in Uruguay living with an ex-police chief.

Rojas also discovered her missing grandchild.

After the Logares case a national TV camapign was launched asking people if they had ''any doubts'' about their parentage to contact the National Bank of Genetic Data which the Abeulas had persuaded the post-military government to establish.

This bank will operate at least until 2050 to allow missing children to track down relatives. So far, the grandmothers have traced about 100 of the 500 "stolen babies".

Among those who ´´had doubts´´ was Rojas' missing grandaughter.

''She saw the TV campaign and her stepfather gave her total support in tracking down her parents´ identity. He had adopted her in good faith from a hopsital, not knowing that her parents had been killed but he too had his suspicions.''

On July 28, 2007, Rojas finally met her granddaughter.

´´It was a beautiful moment. We hugged and cried and she said ´grandma, I want to get to know you and to hear about my parents´. We are in contact now every day.´´

The most famous ´´missing baby´´ is Congresswoman Victoria Donda.

Her parents were killed after her mother gave birth at ESMA in August, 1977. ´´It is important to remember that this was not a civil war,'' Donda said. ''The term implies two roughly equal sides. The ''Dirty War'' was state terror. The military had a social and economic plan to impose and that´s why they targetted the political opposition.''

Perez is quick to point out that there is no chance of those days returning.

´´People are more aware of their rights today than was the case 34 years ago. But we must teach our children about what happened. It is important not to forget´´

Hundreds of human rights trials are now underway after a blanket amnesty for the military was repealed in 2005. ´´But a combination of a slow judicial system and delaying tactics has led to frustration. We want truth and justice. We want people to know.´´