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  • [The historical] development in the international system may almost be defined as the process by which we pass from stable war to stable peace.

    "International Systems: Peace, Conflict Resolution, and Politics" (1975) by Kenneth Boulding (p. 375), as quoted in "Non-offensive defence for the twenty-first century" by Bjørn Møller, Håkan Wiberg, (p. 36), 1994.