The U.S. dropped roughly 18-million gallons of Agent Orange on Vietnamese forests between 1962 and 1971. Lawyers for the plaintiff allege that the chemical companies, including Dow and Monsanto, knew the harmful effects of dioxin, but did nothing to prevent its use on humans during warfare. Previous cases regarding the chemical manufacturers of the agent Zyklon B , used in Nazi death camps , resulted in convictions for war crimes. But the judges in this case noted that the harmful effects of dioxin were not revealed later and that, unlike Zyklon B, Agent Orange was not deliberately used to cause harm in violation of international law. The ruling in this case will affect diplomatic efforts considering the use of depleted uranium munitions, which the World Health Organization has linked to cancer.
Many pesticides and herbicides have been linked to cancer and other health effects. The international community hailed the emergence of DDT in an anti-malarial campaign, but it was later linked to breast cancer and other deteriorating diseases.
Prosecutors at The Hague Appeals Court have prosecuted the Dutch businessman, Frans van Anraat for war crimes for supplying the dual-use materials, including herbicides and pesticides, converted to chemical weapons used by Iraq during the 1980-1989 war with Iran.