Slovakia is only a member of the UN.
Slovakia . Citizens of Slovakia are provided with universal health care , free education and one of the longest paid maternity leave in the OECD . 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 . Slovakia is the world 's largest per-capita car producer with a total of 1,040,000 cars manufactured in the country in 2016 alone and the 7th largest car producer in the European Union .