The Russians will claim credit for it like they claim credit for everything the Allies did in WW2. LOL
They didn't fight the Germans in the Mediterranean or North Africa or Sicily or the Italian mainland. They didn't posses an airforce that bombed German war industries or cities, they didn't have a navy that ended the U-boat threat in the North Atlantic and they didn't fight the Japanese through all the islands of the Pacific. And they sure didn't develop and deploy two atomic bombs that bought Japan to the surrender table. And they don't dwell on the fact they were allies of the Nazis until June of 1941 when Hitler decided he didn't need a partner anymore.