Visegrád Group
The Visegrád Group (also known as the Visegrád Four or the V4) is a cultural and political alliance of four Central European countries: the Czech Republic, Hungary, Poland, and Slovakia.[3] The alliance aims to advance co-operation in military, economic, cultural and energy affairs, and to further their integration with the EU.[4] All four states are also members of the European Union (EU), the North Atlantic Treaty Organization (NATO), and the Bucharest Nine (B9).
The alliance traces its origins to the summit meetings of leaders of Czechoslovakia, Hungary and Poland, held in the Hungarian castle town of Visegrád[5] on 15 February 1991. Visegrád was chosen as the location for the summits as an intentional allusion to the medieval Congress of Visegrád between John I of Bohemia, Charles I of Hungary, and Casimir III of Poland in 1335.
After the dissolution of Czechoslovakia in 1993, the Czech Republic and Slovakia became independent members of the alliance, incrementing the number of members from three to four. All four members of the Visegrád Group joined the European Union on 1 May 2004.