ABSTRACT
The public discussion of zero nuclear weapons (ZNWs) practicality would turn on the question that "What if someone cheats''. Suspected "breakout" from ZNW, which could only be assessed carefully on site, would prompt immediate cries from the suspect against "interference." Some organized capacity must be in place, prepared to go when the authoritative body decides it must. How to arrange this—and to ensure that it would work in crisis, under ambiguous and possibly disputed circumstances—is a question that must be addressed by those thinking about ZNW. The problem enforcement is not only "who decides" but also "who enforces". In the worst case, war will be mobilized against a violator hurrying to put a nuclear capacity in place. At least, force must be threatened.
