It is similar to Bitcoin. There are no promises or assurances. The system is not based on trust, rather, on voluntary participation. Just like bitcoin. We see that it is more profitable to interact with and use the protocol in consensus than to attack it.

Similarly I imagine, the "True Republic" or Kingdom of Heaven, will present terms and incentives that ensure and strengthen its continued existence. Keep in mind, there is no requirement that this "True Republic" must have strictly defined territories or borders- beyond what each individual defines as their private property under natural law.