Answer: Bulgaria
Notes: Recently, European Union ministers approved Bulgaria to adopt the Euro from January 1, 2026, making it the 21st member of the eurozone. Bulgaria is located in southeastern Europe, occupying the eastern part of the Balkan Peninsula. It shares borders with Romania to the north, Turkey and Greece to the south, North Macedonia to the southwest, and Serbia to the west. It is bounded by the Black Sea on the east. The Balkan Mountains cross the central part of the country.
