The West Central African Republic, commonly known as CHAD, is a landlocked country in north-central Africa. It is 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. CHAD is home to over 200 different ethnic and linguistic groups, and its official languages are French and Arabic. The country is divided into several regions, including the Sahara Desert in the north, the Sahel in the center, and the Sudanian Savanna in the south. CHAD has a population of approximately 15 million people, and its economy is largely based on agriculture, livestock, and oil production.