The electricity grid operators of the three Baltic countries on Tuesday officially notified Russia and Belarus that they will exit a 2001 agreement that has kept Estonia, Latvia and Lithuania connected to an electricity transmission system controlled by Moscow.
This is a black and white perspective. You have to keep in mind that citizens of these countries were significantly worse off as (involuntarily) being part of the USSR than the countries that were not in the Eastern Bloc, and most of them are now significantly better off as part of the EU. Most citizens remember the repression, shortages, and russification all too well.