Turkey (Turkish: Türkiye [ˈtyɾcije]), officially the Republic of Turkey (Turkish: Türkiye Cumhuriyeti [ˈtyɾcije d͡ʒumˈhuɾijeti] ( listen)), is a transcontinental country in Eurasia and the Middle East, located mainly in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is bordered by eight countries: Greece and Bulgaria to the northwest; Georgia to the northeast; Armenia, the Azerbaijani exclave of Nakhchivan and Iran to the east; and Iraq and Syria to the south. The country is encircled by seas on three sides, with the Aegean Sea to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, which together form the Turkish Straits, divide Thrace and Anatolia and separate Europe from Asia. Ankara is the capital while Istanbul is the country's largest city and main cultural and commercial centre, classified as a leading global city. Approximately 70–80% of the country's citizens identify as ethnic Turks. Kurds are the largest minority at about 20% of the population.