Ethiopia is a state.
Ethiopia . With over 100 million inhabitants , Ethiopia is the most populous landlocked country in the world , as well as the second-most populous nation on the African continent after Nigeria . Ethiopia 's capital city Addis Ababa serves as the headquarters of the African Union , the Pan African Chamber of Commerce and Industry , the United Nations Economic Commission for Africa , African Aviation Training HQ , the African Standby Force , and many of the global NGOs focused on Africa . Ethiopia is a federal state subdivided into ethno-linguistically based regional states ( plural : kililoch ; singular : kilil ) and chartered cities ( plural : astedader akababiwach ; singular : astedader akabibi ) .