> so far from other countries that it's fairly sheltered from potential conflict

I suspect the small size of the economy, the small number of people in it, and lack of strategic importance in military matters are what keep it protected from potential conflict more than it's self sufficiency and distance. In fact, if anything was to create conflict would be someone trying to capture that self-sufficiency to support their own population.

Yes, it's a number of things.

Small country, fairly neutral stance, little involvement in international conflict, and huge distance.

Follow that up with alliances and there's not much reason to come to NZ, other than for a holiday!

Also, no nuclear ships but part of five eyes. I think it's more complicated.

It really IS though. I am both a NZ and US citizen, and I am well aware that the Bretton Woods Accord is alive and well (although I agree with Peter Zeihan that its days are numbered).