The East Region occupies the southeastern portion of the Republic of Cameroon. It is bordered to the east by the Central African Republic, to the south by Congo, to the north by the Adamawa Region, and to the west by the Centre and South Regions. With 109,011 km² of territory, it is the largest region in the nation as well as the most sparsely populated. Historically, the peoples of the East have been settled in Cameroonian territory for longer than any other of the country's many ethnic groups, the first inhabitants being the Baka (or Babinga) pygmies.