Pol Pot's deputy has claimed that he and other senior figures from Cambodia's hated Khmer Rouge were not "bad people", and that they faced being misjudged by history.
Nuon Chea also told a court that Vietnamese troops were responsible for the deaths of up to 1.7 million Cambodians, and nothis Maoist-inspired regime.
Frail but defiant, the 85-year-old who once served as the regime's main ideologist took to the stand at the United Nations-backed tribunal in Phnom Penh for the first time to declare he had devoted his life to serving his country.
Hundreds had packed the court to hear him speak.
"I don't want the next generation to misunderstand history. I don't want them to believe the Khmer Rouge are bad people, are criminals," he said.
"These war crimes and crimes against humanity were not committed by the Cambodian people. It was the Vietnamese who killed Cambodians."
He is one of three elderly men on trial for their roles in the 1975-79 reign of the Khmer Rouge. Estimates have suggested that up to 1.7 million people were either executed or died of starvation or disease as the regime forced people to live in agricultural labour camps.
Nuon Chea, with Khieu Samphan, 80, the former head of state, and 86-year-old Ieng Sary, the one-time Foreign Minister, are all charged with crimes against humanity, genocide, religious persecution, homicide and torture.
