Slovakia
The Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about 49,000 square kilometres (19,000 sq mi). Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south. The largest city is the capital, Bratislava, and the second largest is Košice. Slovakia is a member state of the European Union, NATO, United Nations, OECD and WTO among others. The official language is Slovak, a member of the Slavic language family. The Slavs - ancestors of the Slovaks - arrived in the territory of present-day Slovakia in the 5th and 6th centuries during the migration period. In the 7th century, Slavs inhabiting this territory played a significant role in the creation of Samo's Empire, historically the first Slavic state which had its center in Western Slovakia. During the 9th century, Slavic ancestors of the Slovaks established another political entity, the Principality of Nitra, which later together with the Principality of Moravia, formed Great Moravia