24 In making these observations it is no part of Our intention to condemn en masse the peoples of the Soviet Union. For them We cherish the warmest paternal affection. We are well aware that not a few of them groan beneath the yoke imposed on them by men who in very large part are strangers to the real interests of the country. We recognize that many others were deceived by fallacious hopes. We blame only the system, with its authors and abettors who considered Russia the best-prepared field for experimenting with a plan elaborated decades ago, and who from there continue to spread it from one end of the world to the other.
Source: Divini Redemptoris (Vatican.va)