It would cost more to base outside of NZ and not needed as the ability to deploy has always been high on the list of capabilities and home defence is your first priority. If a force was large and strong enough to role over the countries you mentioned no one is going to resist it, we would be looking at the end of life on earth.f NZ is looking at combat fighters, then logically the place they would be located is Butterworth, not Auckland. It would be in a forward defence posture. Not a fortress NZ posture. If the force has rolled over Japan, Korea, the US, Singapore, Indonesia and Australia, I would propose that NZ would struggle to resist against such an overwhelming force on its own.