Angola, officially the Republic of Angola, is a country in south-central Africa bordering Namibia to the south, Democratic Republic of the Congo to the north, and Zambia to the east, and with a west coast along the Atlantic Ocean. The exclave province Cabinda has a border with the Republic of the Congo and the Democratic Republic of the Congo. A former Portuguese colony, it has considerable natural resources, most notably petroleum and diamonds. The country is nominally a democracy.