The Madiun Affair (Indonesian: Peristiwa Madiun), known locally as the Communist Party of Indonesia rebellion of 1948 (Indonesian: Pemberontakan Partai Komunis Indonesia 1948), was an armed conflict between the government of the self-proclaimed Republic of Indonesia and the left-wing opposition group Front Demokrasi Rakyat (FDR, People's Democratic Front) during the Indonesian National Revolution. The conflict began on September 18, 1948, in Madiun, East Java, and ended three months later when most FDR leaders and members were detained and executed by TNI forces.
