One of the classic theses of Marxism presupposes that any revolution - except the communist one, of course, contains the germs of a new revolution that will succeed it. This can be stated with the same certainty about the war. Regarding the Second World War 1939-1945, most of the opinions of those informed agree in the idea that it did not even end when the next one had resumed, wrote the famous historian A Fontaine. In this paradigm, Marxism-Leninism gave Soviet leaders, from that date, their own vision of the world, according to which all societies inevitably sooner or later became a "paradise" based on lack of class difference, but traveling a path , and some well-defined stages. On the other hand, the resistance of the "Western capitalists" to this development, conjugated by definition "with the existence of a non-communist state, is a threat to the Soviet Union." The conduct of the war increased the Westerners' sense of admiration for the Russian people, the British being fully entrusted with the effort and strength of character of the new allies, and they, in turn, were hard tried in the first part of the conflict. The Americans will also become fully aware that the reduction in the cost of war is closely linked to the Soviet ally's efforts, so they will overcome the ideological impediments to begin with.