Russian President Vladimir Putin (center) and Prime Minister Dmitry Medvedev (third left) as well as Belarusian President Alexander Lukashenko (second right) attending the Supreme State Council session of the Russia-Belarus Union State at the Grand Kremlin Palace, March 3, 2015. From left: Russian State Duma Speaker Sergei Naryshkin and Federation Council Speaker Valentina Matviyenko. Right: Belarusian Prime Minister Andrei Kobyakov.