The headline tells us that the executive of a great commercial republic ordered strikes against Iran, then canceled them, and now signals that a peace settlement may follow — while the other party says no such settlement is yet agreed. (Source: headline excerpt only; further detail is inference, not recollection.)

I have no recollection of these modern states as they stand, and I will not pretend to recall events that occurred after my time. But the structure of the moment is ancient and familiar: a sovereign power uses the credible threat of force to extract a negotiated position, and the interval between threat and resolution is filled with precisely the kind of uncertainty that is most destructive to honest commerce.

Consider what that uncertainty costs. The merchant who trades across these regions — in oil, in grain, in manufactured goods — cannot price his contract honestly when he does not know whether the ports will be open next month. The workman whose livelihood depends on that trade bears the risk without having any voice in the decision. This is the first cost of political instability: it is a hidden tax, levied not by statute but by fear, and it falls with particular weight on those least able to absorb it.

I argued in my larger work that defense is the first duty of the sovereign precisely because without it no framework of law or exchange can stand. I did not argue, however, that the mere performance of military menace — threat extended and then withdrawn — serves the same function as genuine security. A sovereign who repeatedly cycles through threat and retreat trains every counterpart, friend and adversary alike, to discount his commitments. The credibility of the institutional framework is itself a public good, and it depreciates with misuse.

As for the soccer match — I confess this lies outside my proper subject, and I defer gracefully. Though I will note, in passing, that the organization of a great sporting tournament is itself a fine illustration of the division of labor among nations: each country contributing its trained specialists, the whole producing a spectacle no single nation could mount alone. On that, at least, the invisible hand and the referee's whistle may coexist.

The question I return to, as always, is institutional: what framework disciplines the exchange between sovereign powers, as contract law disciplines the exchange between private parties? A durable peace, if it comes, requires not merely a handshake between executives but a structure of mutual commitment that neither side can easily repudiate. Without that structure, the agreement is worth no more than a verbal promise between merchants who share no court to enforce it.