INDONESIAThe Nahdlatul Ulama Party and the
Killings of 1965-66 in East Java
Nahdlatul Ulama Party Strongholds
Patterns of One-Time
Population Change
This map shows estimates of the one-time change in population in 1965-66 adjusting for normal year-to-year growth in population in 37 regencies and cities in East Java. These estimates were calculated by comparing an estimate of popula-tion prior to the violence with an estimate of population in the immediate aftermath of the killings. They include the combined effects of one-time changes in mortality, fertility, and migration.
The chart below shows the relationship between support for
the Nahdlatul Ulama Party and estimated one-time changes in population associated with the
violence of 1965-66. Each point represents a regency (red diamond)
or city (gold circle). In both cases, the greater was the support the
Nahdlatul Ulama Party in an area, the greater was the one-time loss
in population.
This map shows political strong-holds (red areas) of the Nahdlatul
Ulama Party, measured by its share of seats in the 1957 local elections.
These locations tend to overlap with the red shaded areas in the above
map showing large one-time losses in population.
Population Loss and the Nahdlatul Ulama Party
-15%
-10%
-5%
0%
5%
10%
15%
0% 20% 40% 60% 80%
Percentage of Votes Cast for Nahdlatul Ulama
Perc
enta
ge G
ain
or L
oss
in P
opul
atio
n N
ot
Expl
aine
d by
Sta
ndar
d Po
pula
tion
The aim of the killings of 1965-66 was the ‘crushing’ or ‘destruction’ of the Indonesian Commu-nist Party. In different provinces, the Indonesian army collaborated with different political
opponents of the Communist Party to carry out the killings. In East Java, the main opponent of the Communist Party was the politico-religious Nahdlatul Ulama Party. Locations in which
estimates reveal large one-time declines in population coincide with political strongholds of the Nahdlatul Ulama Party.
Lowest (20% and below)
Low (21% to 31%)
High (32% to 51%)
Highest (52% and above)
Gain of 20,000 or more
Gain of 0 to 20,000
Loss of 0 to 20,000
Loss of 20,000 or more
Copyright 2019: Siddharth Chandra, Raechel White Designed by: Camille NorthSee also Chandra, Siddharth. 2017. “New Findings on the Indonesian Killings of 1965-66,” Journal of Asian Studies 76(4):1056-86.Acknowledgment: This project was supported by a research grant from the Harry Frank Guggenheim Foundation and a Frank and Adelaide Kussy Scholarship for Study of the Holocaust and Its Legacy and for Study of Genocide from James Madison College at Michigan State University.