These are (kind of) dyadic, but mostly state-level data, used internally for doing stuff with the UCDP armed conflict data
Format
A data frame with 4164 observations on the following 15 variables.
conflict_id
a conflict identifier, not to be confused with an episode identifier (which I don't think UCDP offers)
year
a numeric vector for the year
gwno_a
the Gleditsch-Ward state code for the state on side A of the armed conflict
gwno_a_2nd
the Gleditsch-Ward state code for the state that actively supported side A of the armed conflict with the use of troops
gwno_b
the Gleditsch-Ward state code for the actor on side B of the armed conflict
gwno_b_2nd
the Gleditsch-Ward state code for the state that actively supported side B of the armed conflict with the use of troops
incompatibility
a character vector for the main conflict issue ("territory", "government", "both")
intensity_level
a numeric vector for the intensity level in the calendar year (1 = minor (25-999 deaths), 2 = war (>1,000 deaths))
type_of_conflict
a character vector for the type of conflict ("extrasystemic", "interstate", "intrastate", "II"). "II" is a simple abbreviation of "internationalized intrastate"
start_date
a date of the first battle-related death in the conflict, not to be confused with the first battle-related death of the episode
start_prec
the level of precision for
start_date
start_date2
a date of the first battle-related death in the episode, not to be confused with the first battle-related death of the conflict
start_prec2
the level of precision for
start_date2
ep_end
a dummy variable for whether the conflict episode ended in the calendar year of observation
ep_end_date
the episode end date, if applicable
Details
The data-raw
directory on the project's Github will show how I processed the multiple strings for when there are multiple states on a given side.
References
Gleditsch, Nils Petter; Peter Wallensteen, Mikael Eriksson, Margareta Sollenberg & Havard Strand (2002) Armed Conflict 1946–2001: A New Dataset. Journal of Peace Research 39(5): 615–637.
Pettersson, Therese; Stina Hogbladh & Magnus Oberg (2019). Organized violence, 1989-2018 and peace agreements. Journal of Peace Research 56(4): 589-603.