Slovakia
The Slovak Republic and the Czech Republic went their separate ways after 1 January 1993, an event sometimes called the Velvet Divorce. Slovakia has remained a close partner with the Czech Republic. Both countries co-operate with Hungary and Poland in the Visegrád Group. Slovakia became a member of NATO on 29 March 2004 and of the European Union on 1 May 2004. On 1 January 2009, Slovakia adopted the Euro as its national currency.
Economy of Slovenia
Since that time it has vigorously pursued diversification of its trade with the West and integration into Western and transatlantic institutions. Slovenia is a founding member of the World Trade Organization, joined CEFTA in 1996, and joined the European Union on 1 May 2004. In June 2004 it joined the European Exchange Rate Mechanism. The euro was introduced at the beginning of 2007 and circulated alongside the tolar until 14 January 2007. Slovenia also participates in SECI (Southeast European Cooperation Initiative), as well as in the Central European Initiative, the Royaumont Process, and the Black Sea Economic Council.