Heavy attendance of world leaders at Russia’s Victory Day Parade

Russian army soldiers march along the Red Square during the Victory Parade marking the 70th anniversary of the defeat of the Nazi Germany in World War II, in Moscow, Russia, Saturday, May 9, 2015. (Source: AP)

Russian President Vladimir Putin, center, shakes hands with senior military officials after the Victory Parade. (Source: AP)

Russian President Vladimir Putin, center, Chinese President Xi Jinping and Chinese first lady Peng Liyuan, right, attend a wreath-laying ceremony at the Tomb of the Unknown Soldier in Moscow after the Victory Parade. (Source: AP)

From left: Venezuela's President's wife Cilia Flores, Venezuela's President Nicolas Maduro, Kazakh President Nursultan Nazarbayev, Russian President Vladimir Putin, Chinese President Xi Jinping and Chinese first lady Peng Liyuan attend a wreath-laying ceremony at the Tomb of the Unknown Soldier in Moscow after the Victory Parade marking the 70th anniversary of the defeat of the Nazis in World War II, in Red Square, Moscow, Russia, Saturday, May 9, 2015. (Source: AP)

Indian army soldiers march along the Red Square during the Victory Parade marking the 70th anniversary of the defeat of the Nazi Germany in World War II, in Moscow, Russia, Saturday, May 9, 2015. (Source: AP)

An unidentified Russian WWII veteran salutes as he walks, after the Victory Parade marking the 70th anniversary of the defeat of the Nazi Germany in World War II, in Red Square, Moscow, Russia, Saturday, May 9, 2015. (Source: AP)

Russian President Vladimir Putin addresses the Victory Parade marking the 70th anniversary of the defeat of the Nazis in World War II, in Red Square. (Source: AP)

A Russian intercontinental ballistic missile Yars is driven during the Victory Parade. (Source: AP)

President Nursultan Nazarbayev, third left, foreground, listens to Russian President Vladimir Putin, second right, as they get ready to pose for a group photo along with Chinese President Xi Jinping, foreground right, Indian President Pranab Mukherjee, left, Cypriot President Nicos Anastasiades, second left, UN Secretary-General Ban Ki-moon, background third left, and to take part in a wreath laying ceremony. (Source: AP)

Russian army planes fly over the Red Square during the Victory Parade. (Source: AP)