Russian servicemen take part in a rehearsal for the Victory Day parade in St. Petersburg, Russia, May 7, 2019. Russia will mark on May 9 the 74th anniversary of the victory over Nazi Germany in World War II. (Photos: Xinhua)

Russian servicemen take part in a rehearsal for the Victory Day parade in St. Petersburg, Russia, May 7, 2019. Russia will mark on May 9 the 74th anniversary of the victory over Nazi Germany in World War II.

Russian servicewomen take part in a rehearsal for the Victory Day parade in St. Petersburg, Russia, May 7, 2019. Russia will mark on May 9 the 74th anniversary of the victory over Nazi Germany in World War II.

Russian servicemen take part in a rehearsal for the Victory Day parade in St. Petersburg, Russia, May 7, 2019. Russia will mark on May 9 the 74th anniversary of the victory over Nazi Germany in World War II.

Tu-95MS strategic bombers fly over the Red Square during a rehearsal for the Victory Day parade in Moscow, Russia, May 7, 2019. The 74th anniversary of the victory over Nazi Germany in World War II will be marked here on May 9.

A Russian RS-24 Yars intercontinental ballistic missile system rolls down the Red Square during a rehearsal for the Victory Day parade in Moscow, Russia, May 7, 2019. The 74th anniversary of the victory over Nazi Germany in World War II will be marked here on May 9.

Attendants hold a huge St. George's ribbon that symbolizes military honor during a mass dancing event to mark the 74th anniversary of the victory over Nazi Germany in World War II in Moscow, Russia, on May. 7, 2019.

Attendants hold a huge St. George's ribbon that symbolizes military honor during a mass dancing event to mark the 74th anniversary of the victory over Nazi Germany in World War II in Moscow, Russia, on May. 7, 2019.

Attendants dance beside a huge St. George's ribbon that symbolizes military honor during a mass dancing event to mark the 74th anniversary of the victory over Nazi Germany in World War II in Moscow, Russia, on May. 7, 2019.

Attendants hold a huge St. George's ribbon that symbolizes military honor during a mass dancing event to mark the 74th anniversary of the victory over Nazi Germany in World War II in Moscow, Russia, on May. 7, 2019.

Attendants dance beside a huge St. George's ribbon that symbolizes military honor during a mass dancing event to mark the 74th anniversary of the victory over Nazi Germany in World War II in Moscow, Russia, on May. 7, 2019.