Visegrad Group

The Visegrad Group, also known as the Visegrad Four or V4, is a cultural and political alliance of the Czech Republic, Hungary, Poland and Slovakia, established at a summit in the Hungarian castle town of Visegrad on February 15, 1991, tracing its name to the 1335 Congress of Visegrad between the rulers of Bohemia, Hungary and Poland. It aims to advance cooperation in military, economic, cultural and energy affairs among its members, all of which are also members of the European Union, NATO and the Three Seas Initiative. Its membership grew from three to four countries after the 1993 dissolution of Czechoslovakia into the Czech Republic and Slovakia, and all four states joined the European Union together on May 1, 2004, achieving the group's principal goal.