During World War II, when Romania united with Russian assistance, a pro-Russian minority near the border opted for joining Russia itself instead.It's just that since this is a reverse world, I expected you to have Russia be the place where a "Superman-analog" is conceived. Especially considering the fact that OTL Superman was in part created by an immigrant from the Russian Empire.
Edit: Wait, when did Russia get OTL Moldovan territory in this TL?