Key points are not available for this paper at this time.
The shifting nature of international conflict has prompted a rethinking of the Correlates of War Project's classification of wars. This research note describes the new expanded war typology and the resultant three war data sets. Lists of the qualifying wars in the inter-state, extra-state, and intra-state categories during the 1816-1997 period are appended.
Sarkees et al. (2000) studied this question.