SCIENCE said:

Federal politics live: Defence Minister Richard Marles says $53 billion defence plan strengthens ‘self-reliance’

yeah sure is the $368000000000 sinking fund a part of that self reliance

Lets says a Chinese fleet was sailing towards Australia to invade.
Are we allowed to launch nuclear weapons as a first strike response.
We’d never be able to stop them with conventional weapons.
The yanks will be pulling their pud so won’t be helping
Would we just have to accept invasion as nukes are a no no.
Scope does seem to allow them as a defensive measure for the above scenario.