Well it's a starting point at least (see Austria or Belgium). You would then have to build more peace-keeping infra on top of it (see EU). Which highlights why

Well it's a starting point at least (see Austria or Belgium). You would then have to build more peace-keeping infra on top of it (see EU). Which highlights why it was an error to de-buffer Ukraine (also the CIS states surrounding Russia serve more or less this role, although "vassal" would be more appropriate). Speaking of a mecanical system: In the hiearchy of sovereignity, apart from US, RU and CN all countries are somewhat buffers.