A woman looks at the honour guard soldiers marching at the Tomb of the Unknown Soldier by the Kremlin wall, in downtown Moscow, on June 28, 2021. (Photo by Alexander Nemenov/AFP Photo)

A woman sits by a fountain in central Moscow, Russia on June 23, 2021. On June 23, 2021, daytime temperature is expected to reach +36°C (96.8°F). An orange weather warning has been issued due to the heat wave. (Photo by Sergei Fadeichev/TASS)

A visitor visit the “12 Labors of Putin” art exhibition on October 6, 2014 marking the 60th birthday of Russia's President Vladimir Putin at the design workshop in Moscow. (Photo by Vasily Maximov/AFP Photo)

A timber truck driver (L) dressed as Father Frost is saluted by a soldier at the Kremlin's Spasskiye (Saviour) Gate in Moscow, Russian Federation, on December 24, 2013. (Photo by Vyacheslav Prokofyev/ITAR-TASS/ZUMA Press)

Russian President Vladimir Putin (C) and Defence Minister Sergei Shoigu (back) attend a reception to honour graduates of military academies at the Kremlin in Moscow, Russia, June 28, 2016. (Photo by Alexei Druzhinin/Reuters/Sputnik/Kremlin)

A tank's barrel is seen on the course of the Tank Biathlon competition during the International Army Games 2016 in Alabino, outside Moscow, Russia, July 30, 2016. (Photo by Maxim Zmeyev/Reuters)

A woman, covered in coloured powder, takes part in the 2019 Colour Run, a 5 km run around the Luzhniki Olympic Complex, in Moscow, Russia on June 02, 2019. (Photo by Sefa Karacan/Anadolu Agency/Getty Images)

Dancers perform during the opening ceremony before the Russia 2018 World Cup Group A football match between Russia and Saudi Arabia at the Luzhniki Stadium in Moscow on June 14, 2018. (Photo by Sergei Bobylev/TASS via Getty Images)