Georgia is a country located in the Caucasus, at the intersection of Eastern Europe and Western Asia. It is bounded to the west by the Black Sea, to the north and east by Russia, to the south by Turkey and Armenia, and to the southeast by Azerbaijan. It covers 69,700 square kilometres (26,911 sq mi), and has a population of 3.7 million excluding the occupied territories. Georgia is a representative democracy governed as a unitary parliamentary republic. Tbilisi is the capital and largest city, home to roughly a quarter of the population.