The big event was supposed to be held on May 9th, but it was postponed due to the country's coronavirus rise.
"The Soviet people defeated Nazism. It is impossible to imagine what the world's future would have been if the Red Army had not come to their defense," Russia's President Vladimir Putin recalled at the beginning of the parade.
The event was attended by 63,000 military and over 2,400 war teams, including armored, airborne and naval units.
Moscow's closure has been eased this month, but mass meetings are still technically forbidden.
Soldiers participating in the military event had to comply with a strict quarantine before the parade's celebration.
Delegations from Azerbaijan, Armenia, Belarus, Kazakhstan, China, Palestine, Mongolia, Venezuela, Moldova, Serbia, Uzbekistan and the self-proclaimed republics of Abkhazia and South Ossetia, among others, are expected to attend the military review in Red Square.