Comoros is an archipelago island nation in the India Ocean located off the eastern coast of Africa. Surrounding countries include Mozambique, Madagascar, and Seychelles. The Comoros are volcanic islands with steep mountains and low hills. The government system is a republic. The chief of state and head of government is the President. The Comoros has a mixed economic system in which the economy has a heavy reliance on agriculture, combined with relatively weak centralized economic planning and government regulation. Comoros is a member of the African Union (AU), African Economic Community (AEC) and the Common Market for Eastern and Southern Africa (COMESA).