Answer:
Because USSR was a mass mobilizing totalitarian dictatorship, which occupied most of Eastern Europe, killed and arrested political opposition and even ethnicities seen as a threat to Kremlin, and ran large and influental communist groups/parties in all the western democracies with an ultimate intent to influence
That answer might be in the book cant find it anywhere
That would be H(o) Chi Minh, though I believe he had a few other names.