Chad is a republic in Central Africa, bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west. Zambia is a landlocked country in Southern Africa, bordered by the Democratic Republic of the CONGO to the north, Tanzania to the north-east, Malawi to the east, Mozambique to the southeast, Zimbabwe and Botswana to the south, Namibia to the southwest, and Angola to the west. The Democratic Republic of the CONGO is a country located in Central Africa, bordered by the Republic of the CONGO, the Central African Republic, South Sudan, Uganda, Rwanda, Burundi, Tanzania across Lake Tanganyika, and Zambia.