List of Interstate War Dyads by Gleditsch

List of Interstate War Dyads by Gleditsch, extended until 2004. Described fully in Gleditsch, Kristian. 2004. "A Revised List of Wars Between and Within Independent States, 1816-2002." International Interactions 30 (3): 231-62. http://privatewww.essex.ac.uk/~ksg/expwar.html.

interstate_dyads_yearly

Format

An object of class tbl_df (inherits from tbl, data.frame) with 1176 rows and 28 columns.

Variable descriptions

warid
War ID. Character with 137 distinct values. Most common: EIW2.1-450-IW-106 (162), EIW2.1-535-IW-139 (367), EIW2.1-565-IW-151 (98). NAs = 0.

GWn.x
Gleditsch-Ward numeric country code for side A. See Gleditsch and Ward (1999). Numeric. Max = 920, min = 2, distinct = 75, mean = 401.998, sd = 276.722, NAs = 0.

sdate.x
Date country A entered the war. Date. Max = 2003-03-19, min = 1816-08-26, distinct = 201, NAs = 0.

edate.x
Date country A exited the war. Date. Max = 2003-05-02, min = 1816-08-30, distinct = 158, NAs = 0.

year
Year. Numeric. Max = 2003, min = 1816, distinct = 160, mean = 1924.744, sd = 40.772, NAs = 0.

warname
War name. Character with 137 distinct values. Most common: Korean (98), World War I (162), World War II (367). NAs = 0.

GWc.x
Gleditsch-Ward alphabetic country code for side A. See Gleditsch and Ward (1999). Character with 75 distinct values. Most common: DRV (83), FRN (89), UKG (117). NAs = 0.

newcow
newcow Character with 136 distinct values. Most common: IW-106 (162), IW-139 (367), IW-151 (98). NAs = 1.

cow94
cow94 Character with 102 distinct values. Most common: IW-106 (162), IW-139 (367), IW-151 (98). NAs = 145.

cow00
cow00 Character with 108 distinct values. Most common: IS-106 (162), IS-139 (367), IS-151 (98). NAs = 120.

oldwid
oldwid Numeric. Max = 700, min = 105, distinct = 117, mean = 475.967, sd = 131.496, NAs = 95.

deaths.x
Estimated deaths for side A. Numeric. Max = 7500000, min = 0, distinct = 132, mean = 403770.914, sd = 1283219.988, NAs = 4.

outcome.x
Outcome of the war for side A. 1 = on the winning side, 2 = on the losing side, 3 = compromise/tie, 4 = war transformed into another type, 6 = stalemate, 8 = party changed sides. Numeric. Max = 8, min = 1, distinct = 6, mean = 1.742, sd = 1.659, NAs = 0.

outcome_chr.x
Outcome of the war for side A, in character form. Character with 6 distinct values. Most common: 1 = on winning side (951), 4 = war transformed into another type (61), 6 = stalemate (125). NAs = 0.

country_name.x
Standardized country name for country A. Character with 75 distinct values. Most common: France (89), United Kingdom (117), Vietnam, Democratic Republic of (83). NAs = 0.

type
Type of war. Character with 1 distinct values. Most common: Interstate (1176). NAs = 0.

initiate.x
Did country A initiate the war? 1 = initiated, 2 = did not initiate. Numeric. Max = 2, min = 1, distinct = 2, mean = 1.77, sd = 0.421, NAs = 0.

initiate_chr.x
Character version of initiate.x. Character with 2 distinct values. Most common: Did not initiate war (906), Initiated war (270). NAs = 0.

GWn.y
Gleditsch-Ward numeric country code for side B. See Gleditsch and Ward (1999). Numeric. Max = 900, min = 2, distinct = 80, mean = 458.91, sd = 225.551, NAs = 0.

sdate.y
Date country B entered the war. Date. Max = 2003-03-19, min = 1816-08-26, distinct = 167, NAs = 0.

edate.y
Date country B exited the war. Date. Max = 2003-05-02, min = 1816-08-30, distinct = 162, NAs = 0.

GWc.y
Gleditsch-Ward alphabetic country code for side B. See Gleditsch and Ward (1999). Character with 80 distinct values. Most common: BUL (82), CHN (84), GMY (118). NAs = 0.

deaths.y
Estimated deaths for side B. Numeric. Max = 3500000, min = 23, distinct = 92, mean = 506759.191, sd = 931805.559, NAs = 31.

outcome.y
Outcome of the war for side B. 1 = on the winning side, 2 = on the losing side, 3 = compromise/tie, 4 = war transformed into another type, 6 = stalemate, 8 = party changed sides. Numeric. Max = 6, min = 1, distinct = 5, mean = 2.505, sd = 1.288, NAs = 0.

outcome_chr.y
Outcome of the war for side B, in character form. Character with 5 distinct values. Most common: 2 = on losing side (956), 4 = war transformed into another type (61), 6 = stalemate (123). NAs = 0.

country_name.y
Standardized country name for country B. Character with 80 distinct values. Most common: Bulgaria (82), China (84), Germany (Prussia) (118). NAs = 0.

initiate.y
Did country A initiate the war? 1 = initiated, 2 = did not initiate. Numeric. Max = 2, min = 1, distinct = 2, mean = 1.716, sd = 0.451, NAs = 0.

initiate_chr.y
Character version of initiate.y. Character with 2 distinct values. Most common: Did not initiate war (842), Initiated war (334). NAs = 0.

References

Gleditsch, Kristian S. & Michael D. Ward. 1999. "Interstate System Membership: A Revised List of the Independent States since 1816." International Interactions 25: 393-413. The list can be found at http://privatewww.essex.ac.uk/~ksg/statelist.html

Gleditsch, Kristian. 2004. "A Revised List of Wars Between and Within Independent States, 1816-2002." International Interactions 30 (3): 231-62. http://privatewww.essex.ac.uk/~ksg/expwar.html.