Ukraine is a country in Eastern Europe. It is bordered by Russia to the north-east; Belarus to the north; Poland, Slovakia and Hungary to the west; and Romania, Moldova, and the Black Sea to the south. Ukraine is currently in a territorial dispute with Russia over the Crimean Peninsula, which Russia annexed in 2014. Including Crimea, Ukraine has an area of 603,628 km2 (233,062 sq mi), making it both the largest country entirely within Europe and the 46th largest country in the world. Excluding Crimea, Ukraine has a population of about 42 million, making it the 32nd most populous country in the world. Its capital and largest city is Kiev. Ukrainian is the official language and its alphabet is Cyrillic. The dominant religion in the country is Eastern Orthodoxy.