A "peace plan" for Ukraine took shape this fortnight, drafted by the powerful and presented to the invaded as something between an offer and an order, and its essential feature is that it rewards the aggressor, ratifying seized territory, relieving the pressure that the aggression earned, and asking the victim to sign away what was taken by force. The usual objection to such a peace is moral, that it is unjust, that it betrays the wronged party, and that objection is correct as far as it goes. But I want to make the colder objection, the one that a hard-nosed realist who cares nothing for justice should still be forced to answer, which is that a peace which rewards aggression does not actually do the thing peace is supposed to do. It does not end the war. It teaches a lesson, and the lesson guarantees the next one.
John Maynard Keynes made exactly this argument in 1919, not from sentiment but from a ruthless clarity about consequences, when he looked at the peace imposed at Versailles and predicted, in precise and unheeded detail, that a settlement structured around punishment and humiliation and economic ruin would not secure peace but incubate the next war, because a peace is not merely the termination of the present conflict but the setting of the terms on which the future will run, and terms that plant grievance and reward force are terms that grow war. He was right, catastrophically and on schedule, within twenty years. The mechanism I am pointing at is the mirror image of his but the logic is identical: where Versailles bred the next war by punishing the defeated too harshly, this peace breeds the next war by rewarding the aggressor too well, and both fail for the same underlying reason, that a settlement is not just an ending but a precedent, a public demonstration to every watching state of what force does and does not achieve, and the world learns from the demonstration whatever the demonstration actually teaches, regardless of what the peacemakers intended.
Let me give the strongest version of the case for signing anyway, because it is not a cynical case and the people making it are not fools or villains. The killing is real and ongoing, the objection runs; every day the war continues, people die who would live under even an unjust peace; the victim is losing and will lose more; and to prolong the slaughter in the name of a just settlement that superior force will never permit is to sacrifice real lives to an abstraction, to let the perfect murder the possible. Idealism, on this account, is a luxury paid for in other people's blood, and a leader who refuses a bad peace to hold out for a good one that cannot be had is indulging principle at the cost of the very people principle claims to serve. I feel the weight of this fully, and I will not pretend the alternative to a bad peace is a costless good one; it is often more dying. But Keynes's point survives even this, because the choice is not really between a bad peace now and a good peace later; it is between a bad peace now that ends this war while scheduling the next, and a harder road that might secure a peace that actually holds, and the accounting that counts only the lives saved today, and not the lives the lesson will cost tomorrow, is not hard-nosed realism. It is realism with too short a horizon, which is only sentimentality wearing armour.
I write from a part of the world that has been handed many peaces of this kind, settlements drafted elsewhere and presented to us to sign, that stopped a war on terms rewarding whoever held the power, and were praised in distant capitals as pragmatism while we understood, immediately, that we had been handed not a settlement but a lesson, and the lesson was that our borders and our rights held exactly as long as someone stronger found it convenient. I have watched those peaces teach exactly what they were structured to teach, and I have watched the next war arrive as their pupil, and I have watched the same powers that drafted them express the same surprise at their failure. So the pedagogy of a peace is not abstract to me. It is the water I grew up in.
And that is the whole of my argument, made to the realist and not to the idealist, because the idealist already agrees and the realist is the one who needs it: a peace that rewards the aggressor is not a soft-hearted mistake, it is a hard-headed one, because it purchases the end of this war at the price of teaching every state with an appetite for its neighbour's land that appetite is rewarded, force is ratified, and borders belong to whoever will seize them and wait for the powerful to draft the paper. That lesson will be studied. It is being studied now, in every capital with a grievance and an army, and it will be applied, and when it is, the authors of this peace will call the next war a tragedy, a shock, a thing no one could have foreseen. Keynes foresaw it in 1919. It is not hard to foresee. You need only ask what a settlement teaches, and then remember that the students always, eventually, do their homework.