We're not talking about an invasion, we're talking the plundering of your natural resources and more signficantly piracy. Once these guys discover you're helpless, then the trouble starts.
I can just imagine it, high speed fizz boats doing the 14,000 mile round trip from Indonesia to raid my crayfish pots!
If ships are plundering the resources of NZ we need (as I have already inidcated) P3s to find them and surface ships to make the arrest.
Do you think we should unwrap those aircraft and go bomb a Japanese whaler?
Of course, in reality, the only country even remotely likely to plunder our resources has carrier task groups and I am not sure what a few A4s could do about them.