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Well, I did it all in one. Logic of the removals is as follows:
It's original research to claim that there were "annexing SSRs" - no Soviet Socialist Republic annexed territory, only the Soviet Union annexed territory
There were many links which are World War II related or specific to events of World War Two
Opposition events within the Soviet Union are not related to the status of the Eastern Bloc (and there's a mixture that were unambiguously against Communist rule, while others not as clear - eg were protests against working conditions)
The Eastern Bloc was about Central and Eastern Europe, not about Afghanistan or other states