| North Africa (Algeria, Egypt, Libya, Morocco, Tunisia, Western Sahara)
The countries that rim the southern shores of the Mediterranean Sea.
| Sahel (Chad, Mali, Mauritania, Niger, Sudan)
The desert and savanna nations that span the Sahel and southern half of the Sahara Desert.
| West Africa (Benin, Burkina Faso, Cameroon, Cape Verde, Cote d'Ivoire, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, Senegal, Sierra Leone, Togo)
The tropical Atlantic coastal nations.
| Central Africa (Angola, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon, São Tomé and Príncipe, South Sudan)
The heart of Africa.
| East Africa (Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Mauritius, Rwanda, Seychelles, Somalia, Tanzania, Uganda)
The nations that border the Red Sea and the Indian Ocean.
| Southern Africa (Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, Zimbabwe)
Nations at Africa's southern tip.