Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It lies on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. Sofia is the nation's capital and largest city; other major cities are Plovdiv, Varna and Burgas.

Bulgaria is a parliamentary democracy where the prime minister is the head of government and the most powerful executive position. The political system has three branches—legislative, executive and judicial, with universal suffrage for citizens at least 18 years old.

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