FILE PHOTO: Li Hui, China’s special representative for Eurasian affairs, (R) sat with Russian Prime Minister Dmitry Medvedev (L) during his time as ambassador to Moscow. They were attending a video conference, to mark the start of the construction of the Chinese section of the Power of Siberia gas pipeline, in Moscow, Russia, June 29, 2015. REUTERS/Dmitry Astakhov/RIA Novosti/Pool