These data contain a revised and expanded list of wars to conform with the list of independent states outlined in Gleditsch, Kristian Skrede & Michael D. Ward. 1999. "Interstate System Membership: A Revised List of the Independent States since 1816." International Interactions 25:393-413.

They are explained in greater detail in Gleditsch, Kristian Skrede 2004. "A Revised List of Wars Between and Within Independent States, 1816-2002," International Interactions 30:231-262. Please note that the printed version of this article, due to an error outside my control, contains an incorrect Figure 2. Taylor and Francis have corrected the electronic version of the journal article, and this is available here

  To download the current version (2.0, posted 5 November 2013) of the Expanded War Data, click here
  Documentation: See Gleditsch, Kristian Skrede 2004. "A Revised List of Wars Between and Within Independent States, 1816-2002" International Interactions 30: 231-262

Please note that the printed version of this article, due to an error outside my control, contains an incorrect Figure 2. I am therefore making the original manuscript for the article available electronically here.

  See also the readme file for the data.