People watch fireworks at VDNH (The Exhibition of Achievements of National Economy) as part of celebrations of the Victory Day in Moscow, Russia, on May 9, 2022. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People watch fireworks at VDNH (The Exhibition of Achievements of National Economy) as part of celebrations of the Victory Day in Moscow, Russia, on May 9, 2022. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People watch fireworks at VDNH (The Exhibition of Achievements of National Economy) as part of celebrations of the Victory Day in Moscow, Russia, on May 9, 2022. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People holding portraits of their relatives who fought in World War II take part in an Immortal Regiment march in Moscow, Russia, on May 9, 2022. The march is one of the events marking Russia's 77th anniversary of the victory over Nazi Germany in World War II. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People holding portraits of their relatives who fought in World War II take part in an Immortal Regiment march in Moscow, Russia, on May 9, 2022. The march is one of the events marking Russia's 77th anniversary of the victory over Nazi Germany in World War II. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People holding portraits of their relatives who fought in World War II take part in an Immortal Regiment march in Moscow, Russia, on May 9, 2022. The march is one of the events marking Russia's 77th anniversary of the victory over Nazi Germany in World War II. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People holding portraits of their relatives who fought in World War II take part in an Immortal Regiment march in Moscow, Russia, on May 9, 2022. The march is one of the events marking Russia's 77th anniversary of the victory over Nazi Germany in World War II. (Photo by Alexander Zemlianichenko Jr/Xinhua)

People holding portraits of their relatives who fought in World War II take part in an Immortal Regiment march in Moscow, Russia, on May 9, 2022. The march is one of the events marking Russia's 77th anniversary of the victory over Nazi Germany in World War II. (Photo by Alexander Zemlianichenko Jr/Xinhua)