30 September Movement in the context of "Indonesian mass killings of 1965–66"

Benedict Richard O'Gorman Anderson (August 26, 1936 – December 13, 2015) was an Anglo-Irish political scientist and historian who lived and taught in the United States. Anderson is best known for his 1983 book Imagined Communities, which explored the origins of nationalism. A polyglot with an interest in Southeast Asia, he was the Aaron L. Binenkorb Professor of International Studies, Government & Asian Studies at Cornell University. His work on the "Cornell Paper" disputed the official story of Indonesia's 30 September Movement and the subsequent anti-Communist purges of 1965–1966 which led to his expulsion from that country. He was the elder brother of historian Perry Anderson.

Suharto (8 June 1921 – 27 January 2008) was an Indonesian military general and politician who served as the country's second and longest-serving president. Widely regarded as a military dictator by international observers, Suharto led Indonesia as an authoritarian regime from 1967 until his resignation in 1998 following nationwide unrest. His 31-year dictatorship is considered one of the most brutal and corrupt of the 20th century: he was central to the perpetration of mass killings against alleged communists and subsequent persecution of ethnic Chinese, irreligious people, and trade unionists.

Suharto was born in Kemusuk, near the city of Yogyakarta, during the Dutch colonial era. He grew up in humble circumstances. His Javanese Muslim parents divorced not long after his birth, and he lived with foster parents for much of his childhood. During the Japanese occupation, Suharto served in the Japanese-organized Indonesian security forces. During Indonesia's independence struggle, he joined the newly formed Indonesian Army and rose to the rank of major general some time after full Indonesian independence was achieved. An attempted coup on 30 September and 1 October 1965 was countered by Suharto-led troops. The army subsequently led a nationwide violent anti-communist purge. In March 1967, the MPRS appointed Suharto as acting President, and he was appointed President the following year. When Suharto came to power, inflation was running at over 650%. He appointed an economic advisory group that implemented free market policies, and by 1969 the country entered a period of price stability. Suharto ordered an invasion of East Timor in 1975, followed by a 23-year occupation of the country and genocide.

The New Order (Indonesian: Orde Baru, abbreviated Orba) was the regime of the second Indonesian President Suharto from his rise to power in 1966 until his resignation in 1998. Suharto coined the term upon his accession and used it to contrast his presidency with that of his predecessor Sukarno (retroactively dubbed the "Old Order" or Orde Lama).

Immediately following the attempted coup in 1965, the political situation was uncertain, and Suharto's New Order found much popular support from groups wanting a separation from Indonesia's problems since its independence. The 'generation of 66' (Angkatan 66) epitomised talk of a new group of young leaders and new intellectual thought. Following Indonesia's communal and political conflicts, and its economic collapse and social breakdown of the late 1950s through to the mid-1960s, the "New Order" was committed to achieving and maintaining political order, economic development, and the removal of mass participation in the political process. The features of the "New Order" established from the late 1960s were thus a strong political role for the military, the bureaucratisation and corporatisation of political and societal organisations, and selective but brutal repression of opponents. Strident anti-communist, anti-socialist, and anti-Islamist doctrine remained a hallmark of the presidency for its subsequent 30 years.

A Preliminary Analysis of the October 1, 1965, Coup in Indonesia, more commonly known as the "Cornell Paper", is an academic publication detailing the events of an abortive coup d'état attempt by the self-proclaimed September 30 Movement, produced on January 10, 1966. The study was written by Benedict Anderson and Ruth McVey, with the help of Frederick Bunnell, using information from various Indonesian news sources. At the time of writing, the three were members of Cornell University's network of graduate students and scholars on Southeast Asia.

In their work, Anderson and McVey theorized that neither the Communist Party of Indonesia (PKI) nor President Sukarno took part in organizing the operation; instead, they became the victims. On the basis of the material available, they proposed that the coup was indeed an "internal army affair" as was claimed by the September 30 Movement to remove members of the Indonesian Army General Staff who allegedly worked with the U.S. Central Intelligence Agency. By the end of the following week, the movement had been crushed by forces of Major General Suharto, who was charged with the sole responsibility of restoring order. Several alternatives to their theory were also presented and disputed, including the official government account that the PKI had masterminded the coup attempt.

The Communist Party of Indonesia (Indonesian: Partai Komunis Indonesia, Indonesian pronunciation: ['partaɪ koˈmunɪs indo'nesija], PKI, [ˈpekai̯]) was a communist party in the Dutch East Indies and later Indonesia. It was the largest non-ruling communist party in the world before its violent disbandment in 1965. The party had two million members in the 1955 elections, with 16 percent of the national vote and almost 30 percent of the vote in East Java. At the time, it was the largest communist party in the world after the Chinese and Soviet communist parties.

During most of the period immediately following the Indonesian Independence until the eradication of the PKI in 1965, it was a legal party operating openly in the country. Accused of responsibility for the 1965 army-led coup attempt, the party was banned by General Suharto in March 1966 and its members were violently purged.