MOSCOW, RUSSIA - MAY 9: In this handout image supplied by Host photo agency / RIA Novosti, Russian President Vladimir Putin and President of the People's Republic of China Xi Jinping lay flowers at the Tomb of the Unknown Soldier in the Alexander Garden on the day of the military parade to mark the 70th anniversary of Victory in the 1941-1945 Great Patriotic War, May 9, 2015 in Moscow, Russia. The Victory Day parade commemorates the end of World War II in Europe. (Photo by Host photo agency / RIA Novosti via Getty Images)