Correlates of War

InterStateWarData_v4.0

The Inter-State War Database.

IntraStateWarData

The Intra-State War Database. This dataset encompasses wars that predominantly take place within the recognized territory of a state, or intra-state wars.

NonStateWarDatata

The Non-State War Database. 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.