Slovakia is a landlocked country in Central Europe. The capital and largest city is Bratislava. The official language is Slovak. Slovakia is a high-income advanced economy with a very high Human Development Index, a very high standard of living and performs favourably in measurements of civil liberties, press freedom, internet freedom, democratic governance and peacefulness. The country maintains a combination of market economy with universal health care and a comprehensive social security system. The country joined the European Union in 2004 and the Eurozone on 1 January 2009. Slovakia is also a member of the Schengen Area, NATO, the United Nations, the OECD, the WTO, CERN, the OSCE, the Council of Europe and the Visegrád Group. The Slovak economy is one of the fastest-growing economies i