The summit is to discuss issues including a planned U.S. missile-defense system, and the future status of Kosovo.
The annual summit began with a dinner on May 24. Talks are scheduled for today and May 26.
The presidents of Albania, Austria, Bulgaria, Bosnia-Herzegovina, Croatia, Hungary, Italy, Macedonia, Moldova, Montenegro, Poland, the Czech Republic, Romania, Serbia, and Slovakia, are present.
Ukrainian President Viktor Yushchenko has cancelled his participation because the current political crisis in Ukraine.
(compiled from agency reports)
A U.S. official discusses the security threats that Washington feels justifies a missile-defense program. more
Moscow has been uncompromisingly hostile to the U.S. missile-defense proposal. more