This application provides an interactive interface for exploring data from the International Crisis Behavior (ICB) Project .
To begin, navigate to the Crisis List tab. There you can select a crisis by clicking on its name. The toggles will subset the crisis list to specific states, time periods or protracted conflicts. The search box can be used to find crises when you know parts of the crisis names.
Once you click on a crisis name, the viewer takes you to the Crisis Information tab, which displays a subset of key variables about the crisis and crisis actors. Narrative summaries related to the selected crisis are available on additional tabs:
When using the ICB data, please cite the following sources:
Brecher, Michael and Jonathan Wilkenfeld (1997). A Study of Crisis . Ann Arbor: University of Michigan Press.
Brecher, Michael, Jonathan Wilkenfeld, Kyle Beardsley, Patrick James and David Quinn (2025). International Crisis Behavior Data Codebook, Version 16 . https://sites.duke.edu/icbdata/data-collections/
The complete ICB datasets, including more than 200 system/crisis-level and actor-level variables, can be accessed from the ICB Project website:
Codebooks describing all variables in the system/crisis-level and actor-level datasets are available at the following links:
We are grateful for the work of Alex Jonas, who developed the original ICB Data Viewer. His vision and skill laid the foundation for the current version of the viewer and made this resource possible.
The complete ICB datasets, including more than 200 system/crisis-level and actor-level variables, can be accessed from the ICB Project website:
Codebooks describing all variables in the system/crisis-level and actor-level datasets are available at the following links: