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.
Country codes of Serbia
This code is used for national currency, in this case the Serbian dinar. This three-letter code is composed of, by rule, first two letters of the ISO 3166-1 alpha-2 and a third letter is initial of the currency itself: codice_40. Exceptions from the rule are made only in the third letter, if that suits the country better — however that is not the case here.