“Peace proposals unaccompanied by a sworn covenant indicate a plot.”

A peace offer without commitment is usually cover for a strike; require the bond, not the words.
Chapter 9’s shortest sign may be its sharpest: peace proposals unaccompanied by a sworn covenant indicate a plot. The test is not the warmth of the offer but its binding-ness — what the proposer has staked. Sun Tzu, veteran of treaties in a warring states era, treats unbound friendliness not as ambiguity but as a specific hostile signal.
A competitor proposes "exploring partnership" — warm calls, a joint event, genuine-seeming enthusiasm. The overture arrives, not coincidentally, four months before the competitor’s contract renewals with shared customers. No exclusivity is offered, no terms drafted, nothing that would constrain anyone. The firm that asks for the covenant — a signed scope, a real pilot — either gets a partnership or exposes the plot; the firm that accepts the warmth gets ambushed at renewal.
Requiring bonds is not cynicism about cooperation — Sun Tzu’s world of sworn covenants was one where alliances genuinely formed; the verse tells you how to tell the forming from the feigning. The discriminator is stake: what does each party lose if the peace is fake? Where the answer is nothing, keep your formations intact regardless of the mood.