These are (kind of) dyadic, but mostly state-level data, used internally for doing stuff with the UCDP armed conflict data
ucdp_acdA data frame with 4164 observations on the following 15 variables.
conflict_ida conflict identifier, not to be confused with an episode identifier (which I don't think UCDP offers)
yeara numeric vector for the year
gwno_athe Gleditsch-Ward state code for the state on side A of the armed conflict
gwno_a_2ndthe Gleditsch-Ward state code for the state that actively supported side A of the armed conflict with the use of troops
gwno_bthe Gleditsch-Ward state code for the actor on side B of the armed conflict
gwno_b_2ndthe Gleditsch-Ward state code for the state that actively supported side B of the armed conflict with the use of troops
incompatibilitya numeric vector for the main conflict issue (1 = territory, 2 = government, 3 = both)
intensity_levela numeric vector for the intensity level in the calendar year (1 = minor (25-999 deaths), 2 = war (>1,000 deaths))
type_of_conflicta numeric vector for the type of conflict (1 = extrasystemic, 2 = inter-state, 3 = intra-state, 4 = internationalized intra-state)
start_datea date of the first battle-related death in the conflict, not to be confused with the first battle-related death of the episode
start_precthe level of precision for start_date
start_date2a date of the first battle-related death in the episode, not to be confused with the first battle-related death of the conflict
start_prec2the level of precision for start_date2
ep_enda dummy variable for whether the conflict episode ended in the calendar year of observation
ep_end_datethe episode end date, if applicable
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.
Gleditsch, Nils Petter; Peter Wallensteen, Mikael Eriksson, Margareta Sollenberg & H<U+00E5>vard Strand (2002) Armed Conflict 1946<U+2013>2001: A New Dataset. Journal of Peace Research 39(5): 615<U+2013>637.
Pettersson, Therese; Stina H<U+00F6>gbladh & Magnus <U+00D6>berg (2019). Organized violence, 1989-2018 and peace agreements. Journal of Peace Research 56(4): 589-603.