diff --git a/definitions/.gitkeep b/definitions/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/definitions/region/african_subregions.yaml b/definitions/region/african_subregions.yaml
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+++ b/definitions/region/african_subregions.yaml
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+# Subregions defined according to: https://au.int/en/member_states/countryprofiles2
+- African Subregions:
+  - Western Africa:
+      description: >
+        Benin, Burkina Faso, Cabo Verde, Côte d'Ivoire, Gambia, Ghana, Guinea,
+        Guinea-Bissau, Liberia, Mali, Niger, Nigeria, Senegal, Sierra Leone, Togo
+  - Eastern Africa:
+      description: >
+        Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Mauritius, Rwanda,
+        Seychelles, Somalia, South Sudan, Sudan, Tanzania, Uganda
+  - Northern Africa:
+      description: >
+        Algeria, Egypt, Libya, Mauritania, Morocco, Tunisia, Western Sahara
+  - Central Africa:
+      description: >
+        Burundi, Cameroon, Central African Republic, Chad, Congo, Democratic Republic of
+        the Congo, Equatorial Guinea, Gabon, Sao Tome and Principe
+  - Southern Africa:
+      description: >
+        Angola, Botswana, Eswatini, Lesotho, Malawi, Mozambique, Namibia, South Africa,
+        Zambia, Zimbabwe
+- Africa:
+  - Africa
diff --git a/mappings/.gitkeep b/mappings/.gitkeep
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index e69de29..0000000
diff --git a/mappings/african_subregion_aggregation.yaml b/mappings/african_subregion_aggregation.yaml
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+++ b/mappings/african_subregion_aggregation.yaml
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+model:
+  - plan4res 1.0
+  - EV-PV 0.1.0
+  - GENeSYS-MOD 3.2
+  - openTEPES 4.15.7
+native_regions:
+  - Algeria
+  - Angola
+  - Benin
+  - Botswana
+  - Burkina Faso
+  - Burundi
+  - Cabo Verde
+  - Cameroon
+  - Central African Republic
+  - Chad
+  - Comoros
+  - Congo
+  - Côte d'Ivoire
+  - Democratic Republic of the Congo
+  - Djibouti
+  - Egypt
+  - Equatorial Guinea
+  - Eritrea
+  - Eswatini
+  - Ethiopia
+  - Gabon
+  - Gambia
+  - Ghana
+  - Guinea
+  - Guinea-Bissau
+  - Kenya
+  - Lesotho
+  - Liberia
+  - Libya
+  - Madagascar
+  - Malawi
+  - Mali
+  - Mauritania
+  - Mauritius
+  - Morocco
+  - Mozambique
+  - Namibia
+  - Niger
+  - Nigeria
+  - Rwanda
+  - Sao Tome and Principe
+  - Senegal
+  - Seychelles
+  - Sierra Leone
+  - Somalia
+  - South Africa
+  - South Sudan
+  - Sudan
+  - Tanzania
+  - Togo
+  - Tunisia
+  - Uganda
+  - Western Sahara
+  - Zambia
+  - Zimbabwe
+common_regions:
+  - Western Africa:
+    - Benin
+    - Burkina Faso
+    - Cabo Verde
+    - Côte d'Ivoire
+    - Gambia
+    - Ghana
+    - Guinea
+    - Guinea-Bissau
+    - Liberia
+    - Mali
+    - Niger
+    - Nigeria
+    - Senegal
+    - Sierra Leone
+    - Togo
+  - Eastern Africa:
+    - Comoros
+    - Djibouti
+    - Eritrea
+    - Ethiopia
+    - Kenya
+    - Madagascar
+    - Mauritius
+    - Rwanda
+    - Seychelles
+    - Somalia
+    - South Sudan
+    - Sudan
+    - Tanzania
+    - Uganda
+  - Northern Africa:
+    - Algeria
+    - Egypt
+    - Libya
+    - Mauritania
+    - Morocco
+    - Tunisia
+    - Western Sahara
+  - Central Africa:
+    - Burundi
+    - Cameroon
+    - Central African Republic
+    - Chad
+    - Congo
+    - Democratic Republic of the Congo
+    - Equatorial Guinea
+    - Gabon
+    - Sao Tome and Principe
+  - Southern Africa:
+    - Angola
+    - Botswana
+    - Eswatini
+    - Lesotho
+    - Malawi
+    - Mozambique
+    - Namibia
+    - South Africa
+    - Zambia
+    - Zimbabwe
+  - Africa:
+    - Algeria
+    - Angola
+    - Benin
+    - Botswana
+    - Burkina Faso
+    - Burundi
+    - Cabo Verde
+    - Cameroon
+    - Central African Republic
+    - Chad
+    - Comoros
+    - Congo
+    - Côte d'Ivoire
+    - Democratic Republic of the Congo
+    - Djibouti
+    - Egypt
+    - Equatorial Guinea
+    - Eritrea
+    - Eswatini
+    - Ethiopia
+    - Gabon
+    - Gambia
+    - Ghana
+    - Guinea
+    - Guinea-Bissau
+    - Kenya
+    - Lesotho
+    - Liberia
+    - Libya
+    - Madagascar
+    - Malawi
+    - Mali
+    - Mauritania
+    - Mauritius
+    - Morocco
+    - Mozambique
+    - Namibia
+    - Niger
+    - Nigeria
+    - Rwanda
+    - Sao Tome and Principe
+    - Senegal
+    - Seychelles
+    - Sierra Leone
+    - Somalia
+    - South Africa
+    - South Sudan
+    - Sudan
+    - Tanzania
+    - Togo
+    - Tunisia
+    - Uganda
+    - Western Sahara
+    - Zambia
+    - Zimbabwe