Unforeseeable escalation risk alone can deter aggression even among cautious rational actors.

Evidence

One can argue that the Chinese or Russians were deterred by the prospect of major war, not just by the prospect of losing a limited war or winning one at excessive cost. Even if they were convinced that we would exercise every skill and caution to keep a war limited, and they were prepared to exercise skill and caution themselves, they may simply have felt that the process that leads to bigger and bigger wars is not one that they or we fully understand or can foresee, and that the risk, though numerically small, was appreciable. — Thomas C. Schelling, The Strategy of Conflict, 430

Categorization

  • DEFINE: Introduces the concept that deterrence can ride on epistemically unreduced uncertainty about the escalation process, not on any confident forecast of general war.
  • XREF: connects to: Limited war deters partly by exposing both sides to uncontrollable risk of escalation — Thomas C. Schelling, The Strategy of Conflict, 425; Brinkmanship is placing oneself on an uncontrolled slope of shared risk — Thomas C. Schelling, The Strategy of Conflict, 448; Threatening a small risk beats threatening certainty when the enemy’s controllability is uncertain. — Thomas C. Schelling, The Strategy of Conflict, 427 (+4 more)

Broader Connections