Turkey is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a diverse cultural heritage. 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; Iraq and Syria to the south. The country is encircled by seas on three sides: the Aegean Sea is 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; they also separate Europe and Asia. Ankara is the capital while Istanbul is the country’s largest city and main cultural and commercial centre. Approximately 70-80% of the country’s citizens identify themselves as ethnic Turks. Other ethnic groups include legally recognised[II] (Armenians, Greeks, Jews) and unrecognised (Kurds, Arabs, Circassians, Albanians, Bosniaks, Georgians, etc.) minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population.