📊 war: add brecke dataset (#1367)

* 📊 war: add brecke dataset

* fix source year

* enhance

* intrastate -> internal

* remove region -9

* minor fixes

* fix

dag/war.yml

@@ -16,7 +16,7 @@ steps:
     - snapshot://war/2023-01-09/sorokin_1937.csv
   data://meadow/war/2023-01-10/sutton_1971:
     - snapshot://war/2023-01-09/sutton_1971.csv
-  data://meadow/war/2023-02-03/war_brecke:
+  data://meadow/war/2023-02-03/brecke:
     - snapshot://war/2023-02-03/war_brecke.xlsx
   data://meadow/war/2023-02-03/prio_v31:
     - snapshot://war/2023-02-02/prio_v31.xls
@@ -58,9 +58,13 @@ steps:
     - data://meadow/war/2023-06-09/mars
   data://garden/war/2023-06-22/ucdp:
     - data://meadow/war/2023-06-22/ucdp
+  data://garden/war/2023-07-20/brecke:
+    - data://meadow/war/2023-02-03/brecke
 
   # Grapher
   data://grapher/war/2023-06-26/ucdp:
     - data://garden/war/2023-06-22/ucdp
   data://grapher/war/2023-07-14/mars:
     - data://garden/war/2023-07-07/mars
+  data://grapher/war/2023-07-20/brecke:
+    - data://garden/war/2023-07-20/brecke

etl/steps/data/garden/war/2023-07-20/brecke.meta.yml

@@ -0,0 +1,74 @@
+dataset:
+  title: History of war (Brecke, 1999)
+  description: >-
+    This dataset contains information on armed conflicts, both internal and external, in the period of 1400 and 1999.
+
+
+    It has been constructed using the Conflict Catalog Data by Dr. Peter Brecke.
+
+
+    This dataset has its own region definitions (taken from https://bpb-us-w2.wpmucdn.com/sites.gatech.edu/dist/1/19/files/2018/09/Brecke-PSS-1999-paper-Violent-Conflicts-1400-AD-to-the-Present.pdf):
+
+      - North America, Central America, and the Caribbean
+
+      - South America
+
+      - Europe west of 15 degrees east longitude plus Sweden and Italy
+
+      - Europe east of 15 degrees east longitude (includes Caucusus region)
+
+      - Middle East (Iran west to Syria and Arabian peninsula)
+
+      - North Africa (Egypt to Morocco and Mauritania east to Sudan)
+
+      - West & Central Africa (Senegal to Congo)
+
+      - East & South Africa (Ethiopia to Zambia to Angola and south)
+
+      - Central Asia (Afghanistan, former Soviet republics, and Siberia)
+
+      - South Asia
+
+      - Southeast Asia (Burma to Australia and Pacific islands)
+
+      - East Asia (China, Korea, Japan)
+
+
+tables:
+  brecke:
+    # (Inherited from meadow, remove if not different.)
+    variables:
+      number_deaths_ongoing_conflicts:
+        title: Number of deaths in ongoing conflicts
+        unit: deaths
+        description: >-
+          The total fatalities estimates in a year over the course of wars. The total fatalities estimates vary significantly in terms of the degree to which they include disease, starvation, etc.
+
+
+          For some conflicts, data on the number of fatalities was missing. In such cases, we have set the value to 32, which is the lower bound of yearly
+          deaths defined by the source for a violent conflict to be recorded in the dataset.
+        display:
+          numDecimalPlaces: 0
+
+      number_ongoing_conflicts:
+        title: Number of ongoing conflicts
+        unit: conflicts
+        description: >-
+          Number of ongoing conflicts in a given year.
+
+
+          We count a conflict as ongoing in a region even if the conflict is also ongoing in other regions. The sum across all regions can therefore be higher than the total number of ongoing conflicts.
+        display:
+          numDecimalPlaces: 0
+      number_new_conflicts:
+        title: Number of new conflicts
+        unit: conflicts
+        description: >-
+          Number of new conflicts in a given year.
+
+          • New conflicts for the 'World': We only count a conflict as new when the conflict overall started that year, not if it became active again.
+
+          • New conflicts for all regions: We count a conflict as new in a region even if the conflict overall started earlier in another region.
+          The sum across all regions can therefore be higher than the total number of new conflicts.
+        display:
+          numDecimalPlaces: 0