Russian army MiG-29 jet fighters of the Strizhi (Swifts) and Su-30 jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic teams fly in formation during the Victory Day parade, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in central Moscow, Russia May 9, 2018. (Photo by Maxim Shemetov/Reuters)





Russian servicemen march during the Victory Day parade, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, at Red Square in Moscow, Russia May 9, 2018. (Photo by Maxim Shipenkov/Reuters)





A BMPT Terminator armoured fighting vehicle rolls down Moscow's Red Square during a Victory Day military parade marking the 73rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II. (Photo by Sergei Bobylev/TASS via Getty Images)





Members of Yunarmiya youth military organization march during the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





People hold flags and pictures of World War Two soldiers as they take part in the Immortal Regiment march in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





Russian President Vladimir Putin and his Serbian counterpart Aleksandar Vucic attend the Immortal Regiment march in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





People attend the Victory Day celebrations in Moscow, Russia on May 09, 2018. (Photo by Maxim Shemetov/Reuters)





A Russian Mi-26 heavy transport helicopter and Mi-8 military helicopters fly in formation over the Christ the Saviour Cathedral and the Foreign Ministry headquarters during the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Andrey Volkov/Reuters)





Russian servicewomen march during the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





People attend the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Maxim Shemetov/Reuters)





Russian servicemen march during the Victory Day parade at Red Square in Moscow, Russia on May 09, 2018. (Photo by Maxim Shipenkov/Reuters)





Russian servicemen drive Koalitsiya-SV self-propelled howitzers during the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





Russian servicemen attend the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Maxim Shemetov/Reuters)





Russian Defence Minister Sergei Shoigu salutes as he takes part in the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Maxim Shemetov/Reuters)





Veterans attend the Victory Day celebrations in the Siberian city of Barnaul, Russia on May 09, 2018. (Photo by Andrei Kasprishin/Reuters)





Russian cadets march during the Victory Day military parade to celebrate 73 years since the end of WWII and the defeat of Nazi Germany, in Moscow, Russia, Wednesday, May 9, 2018. (Photo by Pavel Golovkin/AP Photo)





People carry a banner, a replica of the so-called Victory Standard which was erected at the top of the Reichstag building in Berlin at the end of World War Two, in the southern city of Stavropol, Russia on May 09, 2018. (Photo by Eduard Korniyenko/Reuters)





Russian jets fly in formation during the Victory Day parade at Red Square in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





A veteran attends the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Maxim Shemetov/Reuters)





Russian servicewomen march during the Victory Day parade at Red Square in Moscow, Russia on May 09, 2018. (Photo by Maxim Shipenkov/Reuters)





A veteran receives a red rose from a girl during the Victory Day celebrations in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





Snipers take up a position prior to the Victory Day parade in Moscow, Russia on May 09, 2018. (Photo by Sergei Karpukhin/Reuters)





Russian snipers secure the area around the Red Square during Victory Day parade in Moscow, Russia, 09 May 09 May 2018. Russia marks the 73rd anniversary of the victory over Nazi Germany in World War II. (Photo by Sergei Ilnitsky/EPA/EFE)





Bastion coastal defense missile systems take part in a Victory Day military parade marking the 73rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II. (Photo by Yuri Smityuk/TASS via Getty Images)





An RS-24 Yars mobile intercontinental ballistic missile system rolls down Moscow's Red Square during a Victory Day military parade marking the 73rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II. (Photo by Sergei Bobylev/TASS via Getty Images)





Soviet T-34 tank parades through Red Square during the Victory Day military parade in Moscow on May 9, 2018 Russia marks the 73 rd anniversary of the Soviet Union' s victory over Nazi Germany in World War Two. (Photo by Kirill Kudryavtsev/AFP Photo)





Russian servicewomen march during the Victory Day parade, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, at Red Square in Moscow, Russia May 9, 2018. (Photo by Maxim Shipenkov/Reuters)





A military truck transports a Korsar tactical surveillance unmanned aerial vehicle (UAV) in Tverskaya Street ahead of a Victory Day military parade marking the 73rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II. (Photo by Valery Sharifulin/TASS via Getty Images)





Servicemen pose for a photo by a BMP amphibious infantry fighting vehicle in Tverskaya Street ahead of a Victory Day military parade marking the 73 rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II in Moscow, Russia on May 9, 2018. (Photo by Valery Sharifulin/TASS)





Children with their parents march during the Victory Day celebrations in the Siberian town of Divnogorsk, Russia on May 09, 2018. (Photo by Ilya Naymushin/Reuters)





A military band seen as people hold portraits of their relatives who fought in World War II during an Immortal Regiment march on the day of the 73 rdanniversary of the victory over Nazi Germany in the Great Patriotic War of 1941-1945, the Eastern Front of the Second World War in Vladivostok, Russia on May 9, 2018. (Photo by Yuri Smityuk/TASS)





A girl carries flowers as people hold portraits of their relatives who fought in World War II during an Immortal Regiment march on the day of the 73 rdanniversary of the victory over Nazi Germany in the Great Patriotic War of 1941-1945, the Eastern Front of the Second World War in Vladivostok, Russia on May 9, 2018. (Photo by Yuri Smityuk/TASS)





People hold portraits of their relatives who fought in World War II during an Immortal Regiment march on the day of the 73 rdanniversary of the victory over Nazi Germany in the Great Patriotic War of 1941-1945, the Eastern Front of the Second World War in Vladivostok, Russia on May 9, 2018. (Photo by Yuri Smityuk/TASS)





The Victory Train departs from Rizhsky Railway Station as part of the events marking the 73 rd anniversary of the victory over Nazi Germany in the Great Patriotic War of 1941-1945, the Eastern Front of World War II in Moscow, Russia on May 9, 2018. The train hauled by two P36 class steam locomotives is to make a journey from Moscow to Dubosekovo. (Photo by Mikhail Pochuyev/TASS)





People at Rizhskaya Railway Station ahead of the departure of the Victory Train as part of the events marking the 73 rd anniversary of the victory over Nazi Germany in the Great Patriotic War of 1941-1945, the Eastern Front of World War III in Moscow, Russia on May 9, 2018. (Photo by Mikhail Pochuyev/TASS)





Russian female cadets march during celebrations marking the 73 rd anniversary of the Soviet Union' s victory over Nazi Germany during World War II on May 9, 2018 in Volgograd. (Photo by Mladen Antonov/AFP Photo)





People dressed in traditional costumes take part in the Victory Day celebrations at the Mamayev Kurgan World War Two memorial complex in Volgograd on May 9, 2018. Russia marks the 73rd anniversary of the Soviet Union's victory over Nazi Germany in World War Two. (Photo by Mladen Antonov/AFP Photo)





Russian policewomen dressed in Soviet Army styled uniforms take part in the Victory Day parade in Volgograd on May 9, 2018. Russia marks the 73 rd anniversary of the Soviet Union' s victory over Nazi Germany in World War Two. (Photo by Mladen Antonov/AFP Photo)





Russian policewomen dressed in Soviet Army styled uniforms take part in the Victory Day parade in Volgograd on May 9, 2018. Russia marks the 73 rd anniversary of the Soviet Union' s victory over Nazi Germany in World War Two. (Photo by Mladen Antonov/AFP Photo)





Russian policewomen dressed in Soviet Army styled uniforms take part in the Victory Day parade in Volgograd on May 9, 2018. Russia marks the 73 rd anniversary of the Soviet Union' s victory over Nazi Germany in World War Two. (Photo by Mladen Antonov/AFP Photo)





Female servicemen march in formation during a Victory Day military parade marking the 73rd anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II, in Palace Square. (Photo by Peter Kovalev/TASS via Getty Images)





Fireworks explode over the statue Motherland Calls, a World War Two memorial located on the top of Mamayev Kurgan hill, during a light and laser show dedicated to the 73rd anniversary of the victory over Nazi Germany in World War Two, in Volgograd, Russia May 8, 2018. (Photo by Tatyana Makeyeva/Reuters)





People watch fireworks over the Mamayev Kurgan memorial complex commemorating the WWII Battle of Stalingrad as part of the Svet Velikoi Pobedy (The Light of the Great Victory) memorial event ahead of the 73 rd anniversary of the Victory over Nazi Germany in the 1941-45 Great Patriotic War, the Eastern Front of World War IIVolgograd, Russia on May 8, 2018. (Photo by Mikhail Tereshchenko/TASS)