Correlates of War Project: International and Civil War Data, 1816-1992 (ICPSR 9905)

Published: Jan 12, 2006

Principal Investigator(s):
J. David Singer; Melvin Small


Version V1

This data collection describes international and civil wars for the years 1816-1992. Part 1, the International Wars file, describes the experience of each interstate member in each war. The unit of analysis is the participant in a particular conflict. When and where each interstate member fought is coded, along with battle and total deaths, pre-war population and armed forces, and whether the member in question initiated the conflict. Each war is characterized as interstate, colonial, or imperial, and major power status and/or central system membership of the warring parties is noted. Part 2, the Civil Wars file, describes when and where fighting took place, whether the war was fought within the boundaries of a major power or central system member, whether there was outside intervention and, if so, whether the intervening state was a major power, on what side they intervened, who won the war, number of battle deaths, total population, and total number of pre-war armed forces.

Singer, J. David, and Small, Melvin. Correlates of War Project: International and Civil War Data, 1816-1992. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2006-01-12.

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United States Institute of Peace (464 and SES9213364)

National Science Foundation

1816 -- 1992

1982 -- 1992

Part 5, an SPSS Export File, contains three alphanumeric variables (WARNAME, ABBREV, and NATNAME), not included in the raw data version of this collection. This data collection replaces WAGES OF WAR, 1816-1980: AUGMENTED WITH DISPUTES AND CIVIL WAR DATA (ICPSR 9044).

Wars from 1816-1992 in which at least one member of the interstate system took part.

aggregate data and event/transaction data



2006-01-12 All files were removed from dataset 3 and flagged as study-level files, so that they will accompany all downloads.


  • Data in this collection are available only to users at ICPSR member institutions.

  • The citation of this study may have changed due to the new version control system that has been implemented.
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