High Quality Content by WIKIPEDIA articles! The 2006 Riga summit or the 19th NATO Summit was a NATO summit held in Riga, Latvia from November 28 until November 29, 2006. The most important topics discussed were the War in Afghanistan and the future role and borders of the alliance. Further, the summit focused on the alliance`s continued transformation, taking stock of what has been accomplished since the 2002 Prague Summit. NATO also committed itself to extend further membership invitations in the upcoming 2008 Bucharest Summit. This summit was the first NATO summit held on territory of a former USSR republic.