It seemed like a small event, but it got a lot of tongues wagging. Armenian President Serzh Sarkisian decided not to attend an "informal summit" of the Russian-led Collective Security Treaty Organization (CSTO) on May 28. Sarkisian's office cited Armenia's Republic Day holiday that day and a visit to Yerevan by Britain's Prince Charles.
http://www.rferl.org/content/armenia-russia-relations-eu/25005446.html
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