This study is 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.

Correlates of War Project: Militarized Interstate Dispute (MID) Data, 1816-2001 (ICPSR 24386)

Principal Investigator(s): Diehl, Paul, University of Illinois; Geller, Daniel, University of Mississippi; Gibler, Doug, University of Kentucky; Gochman, Charles, University of Pittsburgh; Hensel, Paul, Florida State University; Moaz, Zeev, Tel Aviv University; Palmer, Glenn, Penn State University; Pollins, Brian, Ohio State University; Ray, James Lee, Vanderbilt University; Regan, Patrick, Binghamton University; Stoll, Richard, Rice University


The Militarized Interstate Dispute (MID) (v3.10) data, compiled by the Correlates of War Project, provides information about conflicts in which one or more states threaten, display, or use force against one or more other states between 1816 and 2001. Five datasets are included with this collection. The first dataset comprises essential attributes of each militarized interstate dispute from January 1, 1816, through December 31, 2001, while the second dataset includes participants in each of these disputes. The third dataset comprises essential elements of each militarized interstate incident from January 1, 1993, through December 31, 2001, including incidents that belong to disputes that began in 1992 and continued into 1993, while the fourth dataset includes participants in each of these incidents. The fifth dataset contains dyadic militarized interstate disputes, of which each dyadic MID has exactly two states involved, on opposite sides of the MID. Generated from the incident-level data, these data are from the years 1993 through 2001, and additionally are provided for MIDs that were ongoing as of December 31, 1992.

Series: Correlates of War Project Series

Access Notes

  • Data in this collection are available only to users at ICPSR member institutions. Please log in so we can determine if you are with a member institution and have access to these data files.


DS0:  Study-Level Files
DS1:  MIDA: Essential Attributes of Each Militarized Interstate Dispute (Version 3.10) - Download All Files (2.766 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
DS2:  MIDB: Participants in Each of the Disputes in MIDA (Version 3.10) - Download All Files (3.618 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
DS3:  MID-I: Essential Elements of Each Militarized Interstate Incident (Version 3.10) - Download All Files (2.538 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
DS4:  MID-IP: Participants in Each of the Incidents in MID-I (Version 3.10) - Download All Files (3.465 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
DS5:  Dyadic Militarized Interstate Dispute Data (Version 3.10) - Download All Files (2.148 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   

Study Description


Diehl, Paul, Daniel Geller, Doug Gibler, Charles Gochman, Paul Hensel, Zeev Moaz, Glenn Palmer, Brian Pollins, James Lee Ray, Patrick Regan, and Richard Stoll. Correlates of War Project: Militarized Interstate Dispute (MID) Data, 1816-2001. ICPSR24386-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2010-03-05. https://doi.org/10.3886/ICPSR24386.v1

Persistent URL: https://doi.org/10.3886/ICPSR24386.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

  • National Science Foundation

Scope of Study

Subject Terms:    combat, conflict, conflict resolution, foreign affairs, hostility, international alliances, international conflict, international relations, military alliances, military intervention, nations, war, war deaths

Smallest Geographic Unit:    independent sovereign state

Geographic Coverage:    Afghanistan, Albania, Algeria, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bolivia, Bosnia-Hercegovina, Botswana, Brazil, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China (Peoples Republic), Colombia, Comoros, Costa Rica, Croatia, Cuba, Cyprus, Czech Republic, Democratic Republic of Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Finland, France, Gabon, Gambia, Germany, Ghana, Global, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Mauritania, Mexico, Moldova, Mongolia, Morocco, Mozambique, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, North Korea, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Lucia, Saint Vincent and the Grenadines, Saudi Arabia, Senegal, Sierra Leone, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, Sudan, Suriname, Swaziland, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States, Uruguay, Uzbekistan, Venezuela, Vietnam (Socialist Republic), Yemen, Yugoslavia, Zambia, Zimbabwe

Time Period:   

  • 1816-01-01--2001-12-31

Date of Collection:   

  • 2000--2002

Universe:    One or more independent sovereign states which threaten, display, or use force against one or more other independent sovereign states between 1816 and 2001.

Data Type(s):    aggregate data, event/transaction data

Data Collection Notes:

Please anticipate that this collection will be updated in the future, as changes and corrections are made to the existing data and additional data are added.

Additional details about the Correlates of War Project can be found at the Correlates of War Web Site.


Sample:    inap.


Original ICPSR Release:   2010-03-05

Related Publications



Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics