The International Crisis Behavior (ICB) Version 16 datasets are now available, covering 1918 to 2021. This consists of 512 crises, 1,131 crisis actors, and 1,000 crisis dyads.
A new version of the ICB Data Viewer is available. This is a useful tool to explore key variables and to access the summaries of both the crises and any protracted conflicts they are associated with. The previous version of the viewer (updated through V15) can be accessed here.
 | The University of Michigan Press has just released a new volume on ICB. A Century of International Crisis Behavior summarizes the evolving patterns of international crisis behavior in the more than 500 cases cataloged since 1918, provides an accounting of the state of the scholarship to make sense of the patterns, and presents new findings that advance our understanding. The authors — 37 researchers — highlight what we have learned and what we have yet to learn regarding the prevention, escalation, and de-escalation of international crises. |
 | A Study of Crisis has been re-released as an e-book and is available for open access. Brecher and Wilkenfeld explore many aspects of conflict, including the ethnic dimension, the effect of different kinds of political regimes--notably the question whether democracies are more peaceful than authoritarian regimes, and the role of violence in crisis management. They employ both case studies and aggregate data analysis in a Unified Model of Crisis to focus on two levels of analysis--hostile interactions among states, and the behavior of decision-makers who must cope with the challenge posed by a threat to values, time pressure, and the increased likelihood that military hostilities will engulf them. |
This Web site offers access to the primary data collections from the ICB project. The data are scheduled for annual updates, which will be available at this site.
This project is indebted to the inspiration and efforts of our dear friend Michael Brecher, who recently died at the age of 96. A remembrance of Michael and his legacy can be found here.
