I was going to Uman Ukraine every year for Rosh Hashanah and staying for some months and sometimes longer. They used to have a very nice celebration on may 9. Every class in the local schools would put on its own presentation for the victory over the Nazis. This went on the whole day. But at one point, that was silenced. Then one after the other, all the statues of WWII heroes were taken down. Then even the central Russian orthodox church that was packed every  Sunday was locked and shuttered.  

It is almost as if they regret their victory over the Nazis