| COW | COW Wars v. 4.0, 1816-2007 |
The COW Project will introduce COW Wars v4.0, 1816-2007 in 2010. This article gives an overview of the COW war typology, the descriptions of the basic variables, and some of the changes since ''Resort to Arms.'' The artice is also available in .rtf format here.
The actual data sets will be posted sequentially along with documentation, in 2010. In March 2010, the New COW War List was released. On June 30, 2010, the Non-State War Data set (v4.0) became available.
In any papers or publications that refer to this war list, users are asked to use:
Bibliography Entry: Sarkees, Meredith Reid and Frank Wayman (2010). Resort to War: 1816 - 2007. CQ Press.
The new list of COW wars that will be included in the COW war databases is here.
Previously, the Correlates of War (COW) Project has examined only wars that involved the government of a member of the interstate system (a state) in one form or another. The inclusion of non-state wars in the data presented here represents an attempt to broaden our understanding of war by including wars between or among non-state entities. Such entities include governments of other types of geopolitical units (GPUs), such as dependencies or non-state autonomous entities, that do not meet the criteria of system membership. They also might involve nonterritorial entities (NTEs) or non-state armed groups (NSAs) that have no defined territorial base.
| NonStateWarData_v4.0.csv | The first version of the Non-State War Database. Please note the distinction between the "-8" and "-9" codes as specififed in the codebook listed below. |
| ListNonStateWars.pdf | The list of Non-State Wars. |
| NonStateWars_Codebook.pdf | The codebook v4.0 for the Non-State War Data set. |
The war data sets are hosted by Meredith Sarkees, Women & Politics Institute at American University, and Frank Wayman, University of Michigan-Dearborn, under the COW Data Set Hosting Program. In case of questions, they may be contacted by email at sarkees@sbcglobal.net and fwayman@umich.edu.