Bambu, on the issue of Missile Defense, I recommend that Australia buy some modified F-104 Starfighters and arm them with Sidewinder Missiles, which can be used to shoot down Intercontinental Ballistic Missiles, etc. And for instance if North Korea sent a Missile at Australia then Australia could send up some F-104 Starfighters with Sidewinder Missiles to shoot down the Missiles.
From another post that I made on Meander...
On the issue of our fighter planes...
They can vector the thrust on the F-104 Starfighter to improve the steering and to help it to pull out of spins, and they can update the technology on the F-104, and they can continue to use the F-104 to help to protect America. The F-104 is way faster than the F-18, and with some modifications then the F-104 can still be of service.
And NASA continues to use the F-104 Starfighter as a chase plane, it is a fast plane, they just need to make some modifications and the plane can still be of service, along with being a chase plane for NASA.
You can arm the modified F-104 Starfighters with Sidewinder Missiles and you can use them to shoot down Intercontinental Ballistic Missiles, etc.
Salute,
Tony V.