Russian Su-30SM, Su-34 and Su-35S combat aircraft fly in formation during the Victory Day Parade in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian TOS-1A multiple rocket launchers drive during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Ramil Sitdikov via REUTERS

Russian Su-25 jet aircraft release smoke in the colours of the Russian state flag during the Victory Day Parade in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Vladimir Pesnya via REUTERS

Russian Ka-52 "Alligator"?military helicopters fly during the Victory Day Parade in Saint Petersburg, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen drive military vehicles during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian TOS-1A multiple rocket launchers drive during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Ramil Sitdikov via REUTERS

Russian Buk-M3 missile systems drive during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Iliya Pitalev via REUTERS

Soldiers of China's People's Liberation Army march during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicewomen march during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen march during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian Typhoon-VDV 4x4 all-terrain armoured vehicles drive during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen march during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Ramil Sitdikov via REUTERS TPX IMAGES OF THE DAY

An aerial view shows Red Square during the Victory Day Parade in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Alexander Vilf via REUTERS

SU-100 Soviet-era tank destroyers drive during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russia's President Vladimir Putin, Defence Minister Sergei Shoigu and Chief of the Russian Land Forces Oleg Salyukov leave after the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian army MiG-29 jet fighters of the Strizhi (Swifts) and Su-30SM jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic teams fly in formation during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen march during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Evgeny Biyatov via REUTERS

Russian servicemen dressed in historical uniforms march during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen are seen onboard a military vehicle during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian army MiG-29 jet fighters of the Strizhi (Swifts) and Su-30SM jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic teams fly in formation over Red Square during the Victory Day Parade in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Iliya Pitalev via REUTERS

A Russian A-50 early warning aircraft flies above a cathedral during the Victory Day Parade in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Turkmen servicemen attend the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian servicemen march during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Evgeny Biyatov via REUTERS

Members of Youth Army movement march during the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19).

Russian sailors march during the Victory Day Parade in Red Square in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Mikhail Voskresenskiy via REUTERS

Russian President Vladimir Putin shows the way to Belarusian President Alexander Lukashenko, leader of Georgian breakaway region of Abkhazia Aslan Bzhania, Moldovan President Igor Dodon and Tajik President Emomali Rahmon during a flower-laying ceremony at the Tomb of the Unknown Soldier after the Victory Day Parade in Moscow, Russia, June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). Host photo agency/Grigory Sysoev via REUTERS