Δεν διατίθεται περίληψη στα ελληνικάThe purpose of this article is to provide a traditional Realist analysis of the historic changes that took place in the international system during 1989-93. The fall of the Soviet Union is linked to the strategic decisions of the Soviet leadership in the decade after 1975. In the mid-1970s the Soviet Union had reached the peak of its power and influence. It had achieved strategic parity with the United States, while its rival was in retreat after the Vietnam debacle. At this point the Soviet Union might have opted for normalisation of its international relations and economic reform at home, much as China is implementing today. Instead, the Soviet leadership pursued policies that posed threats to Western E...