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State System Membership (v2016) now available.

The State System Membership data (v2016) is now available. The data are updated through 2016.

Trade (v4.0) now available.

Version 4 of the Trade data is now available. The updated data data are available from 1870-2014.

Colonial/Dependency Contiguity v3.1 available

The newest version, 3.2, of the Colonial/Dependency Contiguity updates the data through 2016.

Direct Contiguity v3.2 available

Version 3.2 of the Direct Contiguity data is now available. The data is updated through 2016.

National Military Capabilities v5. available

Version 5 of the NMC data is now available. NMC V5 updates the data through 2012.

COW Board Meeting at ISA 2017

COW Board Meeting on February 24 in the Tilghman Room at the Hilton Baltimore.

The annual COW Board meeting at ISA will take place on Friday, February 24 in the Tilghman Room at the Hilton Baltimore. The meeting will take place from 7:30-8:30pm.

Territorial Change Data set (v5) available

Version 5 of the Territorial Change data set updates the data through 2014.. The current version is available under the "Data Sets" page, "Territorial Change Data" section.

MID Data set (v4.01) available

Version 4.01 of the MID data set corrects minor discrepancies in the MID 4.0 data. The current version is available under the "Data Sets" page, "Militarized Interstate Disputes Data" section.

MID Data set (v4.0) available

Version 4.0 of the MID data set extends the Militarized Interstate Dispute data through 2010. The current version is available under the "Data Sets" page, "Militarized Interstate Disputes Data" section.

World Religion Data set (v1.1) available

This update to the World Religion Data updates multiple records, especially from 2000-2010. The current version is available under the "Data Sets" page, "World Religion Data" section.

Alliances Data set (v4.1) available

Version 4.1 updates the alliance data by including two Israeli treaties that were not in the original v4.0 data. The current version is available under the "Data Sets" page, "Formal Alliances Data" section. 

Jessica Weeks joins the COW Advisory Board

Jessica Weeks replaces Phil Schrodt on the Correlates of War Advisory Board. Her terms through March 2018. 

Alliances Data set (v4.0) available

The data set records all formal alliances between states in 1816-2012 and is now available under the "Data Sets" page, "Formal Alliances Data" section.

World Religion Data set (v1.0) available

The data set covers religious adherence worldwide since 1945 and is now available under the "Data Sets" page, "World Religion Data" section. 

Zeev Maoz becomes Director of COW

On January 1, 2013 Zeev Maoz became Director of the Correlates of War Project. He took over for Paul F. Diehl, who served as the COW director from 2005 through 2012.