MichaelA🔸 comments on Will the Treaty on the Prohibition of Nuclear Weapons affect nuclear deproliferation through legal channels?

[MichaelA🔸]

there are no TPNW supporters that are obvious candidates to join (Kazakhstan, which has already ratified the TPNW, is already a member of CSTO).

I may be misunderstanding something, but wouldn’t that imply there’s at least one case where it’s very likely for the TPNW to result in a supporter withdrawing from the protection of a nuclear umbrella (which is technically different from preventing a supporter from seeking such protection, but seems clearly related)? That’s based on the info in this post that Kazakhstan has ratified the TPNW, the country is a member of the CSTO, the CSTO counts as a nuclear umbrella, and the TPNW forbids state parties from being under a nuclear umbrella.

(I haven’t actually read the TPNW—perhaps it stipulates something like a ban on countries seeking out nuclear umbrella protection, but doesn’t mandate withdrawing from such protection.)