User: Explain the difference of position against the Western Bloc among the Soviet leaders cited in the text.
Assistant: Stalin believed that war against the Western Bloc was inevitable.
Krushchev instead believed the two blocs could avoid war because the war was not necessary to establish the Eastern Bloc's superiority; the Western Bloc would fail systemically.
On the other hand, Gorbachev truly believed in peaceful coexistence between the two blocs.