This chapter contributed by Daniela Russo invites us to consider the rhetoric of war and peace, a theme which is of crucial importance to any attempt to construct a “peace-enhancing union” among the peoples of the world as this book has advocated and sketched out in practical terms. If we consider the fields of literature and of historical narrative, it has for centuries been replete with various tales of heroism in warfare, whereas the case for peace and the outline of its immense benefits in terms of prosperity and human well-being achieved through peaceful tolerant co-existence has been overshadowed and marginalised to the extent that in the history of mankind warfare has been the default state of affairs, with the constant warring being punctuated by exceptional short interludes, one might say parentheses, of peace. Moreover, on a closer examination of the relative peace that has characterised the latter part of the twentieth century, this was a peace based on the fear of mutually assured destruction that would result from a nuclear war. Such a situation is inherently unstable, in particular when volatile authoritarian leaders hold the reins of power in certain supposedly “great” power states. Against this background, the case for patient construction of a supranational world authority with real supranational enforcement powers to resolve disputes based on a rational impulse to cooperate for a truly sustainable Kantian-inspired peace founded on goodwill and mutual trust rather than on fear is compelling. This book makes an important contribution to outlining the institutional innovations which such a transition will require.