Who the fuck would want to invade Australia??? 
This is all getting a little ridiculous.
China are all through here mate. Our govts left the door wide open and Chinese bought up a stack of resources here over the last 1-2 decades. It’s why we got so rich as a country.
Now we see the west seize assets regardless of people guilty of anything. That’s alarm bells for anyone with overseas interests. China get basically everything from us, they are fucked if the world sanctions them and seizes their assets.
The US are stationing more troops here and building a base up north which was done in the last 6mths or so. Oz, US, UK all operate very closely together and it’s why Oz always sends troops overseas to fight alongside the allies.
It might sound odd to overseas people but here it’s always something the majority have wondered which is when would China invade us for resources. Yes, it’s an incredibly real threat and we are who China would come after once they have Taiwan.