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Annual Alliance Membership Data, 1815-1965

(804 KB)

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

Summary: This data collection comprises one of four companion datasets produced by the Correlates of War Project at the University of Michigan. It consists of information on annual symmetric matrices of international alliance bonds for 157 nations in the period 1815-1965. For each alliance bond, data are coded for the type of alliance, such as defense, neutrality, or entente, according to explicit national commitments. (view details)

Persistent URL: http://dx.doi.org/10.3886/ICPSR05602.v1

Access Notes

  • These data are available only to users at ICPSR member institutions. You will be asked to log in prior to downloading the data.

  • This study was originally provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.

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