Estonia is a state.
 Beginning 1 January 2011, Estonia adopted the euro and became the 17th eurozone member state
  Democratic throughout most of the interwar period, Estonia declared neutrality at the outbreak of World War II, but the country was repeatedly contested, invaded and occupied, first by Stalinist Soviet Union in 1940, then by Nazi Germany in 1941, and ultimately reoccupied in 1944 by, and annexed into, the USSR as an administrative subunit (Estonian SSR)

