Whose victory over Japan, exactly? The USSR fought Japan for less than a month, only when they were already near defeat, after the US and UK fought them for over 3 and a half years, and China for 8 years.
Last year, Russia adopted a law on mentioning the victory over Japan at events related to the end of the World War II. The move came after Japan imposed sanctions on top Russian officials, their relatives, as well as on Russian banks and companies, over Moscow’s ongoing invasion of Ukraine.
That sounds...petty