Armenia, republic in western Asia. With Georgia and Azerbaijan, Armenia is located in the South Caucasus (the southern portion of the Caucasus region), which occupies part of the isthmus between the Black and Caspian seas. Yerevan is the capital and largest city.

In Armenian, the official state language, Armenia is named Hayastan. Ethnic Armenians, who call themselves Hay, constitute more than 90 percent of the country’s population. Incorporated as a part of the Union of Soviet Socialist Republics (USSR) in 1922, Armenia became independent in 1991. Its first post-Soviet constitution was adopted in 1995.