The 2002 Prague summit was a NATO summit held at the Prague Congress Centre where the heads of state and government of the NATO member states met. Seven states were at this summit invited to begin accession talks with NATO: Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia and Slovenia. NATO's post-Cold War Open Door Policy was also reaffirmed at this meeting. A NATO Response Force was considered and planned at this moment, a force which would be officially declared ready at the 2006 Riga summit.