Ieng Thirith was an influential intellectual and politician in the Khmer Rouge, although she was neither a member of the Khmer Rouge Standing Committee nor of the Central Committee. Ieng Thirith was the wife of Ieng Sary, who was Minister of Foreign Affairs of Democratic Kampuchea's Khmer Rouge regime. She served as Minister of Social Affairs from October 1975 until the fall of the Khmer Rouge in 1979.