Chinese President Xi Jinping (L) and his wife Peng Liyuan (R) are welcomed by Russian President Vladimir Putin at the Kremlin in Moscow, Russia, May 9, 2015. Xi, hosted by Putin, was among more than 20 leaders of countries, regions and international organizations to attend the commemorative event marking the 70th anniversary of the victory of the Great Patriotic War on Saturday. (Xinhua/Rao Aimin)