Inter-State, Intra-State, Extra-State, and Non-State Wars, 1816-2004.

The article presents a paper on interstate, intrastate, extrastate and non-state wars from 1816 to 2004 prepared for the annual meeting of the International Studies Association in Honolulu, Hawaii in March 2005. It aims to incorporate all the wars that have occurred globally. It notes that wars involving interstate members can be studied to see if superior capability deters aggression or whether arms races lead to war. It mentions that there are encouraging indicators of an unprecedented cessation of interstate war among the richest nations.