(VOVworld) - The Vietnam Association of Victims of Agent Orange (AO)/Dioxin (VAVA) sent an open letter on Thursday calling for support for an AO victim’s lawsuit against 26 US chemical companies that produced the chemical toxins sprayed by the US army in the war in Vietnam. Vietnamese-French Tran Thi To Nga, born in 1942, became a war correspondent of the Liberation News Agency, now the Vietnam News Agency, after graduating from a Hanoi university in 1966. She worked in some of the most heavily AO/Dioxin saturated areas in southern Vietnam - Cu Chi, Ben Cat and along the Ho Chi Minh Trail, and ultimately experienced effects of contamination. Of her three children, the first child died of heart defects, while the second contracted a blood disease. In 2009, Nga, who herself contracted a number of acute diseases, appeared as a witness at the Court of Public Opinion in Paris, in a suit against the US chemical companies. Last May, she and the Paris-based William Bourdon & Forestier law firm filed a lawsuit against 26 US chemical firms for producing chemical toxins sprayed by the US army in the war in Vietnam, with calamitous consequences for her and her children. The complaint and supporting documents were handed over to the Crown Court of Evry city in the suburb of Paris and the 26 US companies, 10 of which have hired defense lawyers. The Court of Evry city will conduct legal proceedings in the case on April 16, said VAVA Chairman Nguyen Van Rinh at a press conference on Thursday: "We’ll send witnesses to the court if required. I believe justice will prevail and this will pave the way for other cases. If convicted, the US chemical companies must take responsibility."