A young refugee in Delhi in August 1947 squats on the rubble of a ruined Sultanate monument

International Conflict

The International Conflict Data Lab at the University of Alabama offers a suite of logically-consistent, correctly-coded datasets that identify all threats, displays, and uses of force between states from 1816 to 2014.

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Data Set Numbers

  • 35,000 historical sources

  • 1,900 confrontations

  • 30,000 event observations

Some of the features of the data include: summary datasets built from the events data at the confrontation and confrontation-participant level, truly dyadic dyad-year data with yearly observations of highest actions and fatality ranges, no missing-fatality cases, ordered treatment of missing-day cases, a separate dataset that codes how confrontations end, separate datasets for protest-dependent cases and war declarations, and more
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SMS Berlin arriving in Agadir in July 1911

Do Not Select on Fatal Conflicts

A convention that has developed over the last couple of decades has quantitative researchers sampling only the Correlates of War Militarized Interstate Disputes (CoWMIDs) that had military fatalities. Most recognize the heterogeneity in the data set—that there are some “weird” cases—and want to analyze only those cases that truly have a chance to escalate to war. We have found this selection method to be both theoretically and empirically fraught. Here’s why.