Australia is a unique place. There really isn't a civil war possible, unless the indigenous uprise to kick you out. You basically occupy a tiny sliver on the east and west side of the island.

And i do not think that real war is coming to Australia, except for that little island off your coast where all the rich seem to have built bunkers. Lots of digging equipment is heading there. And that will be after the landing parties take the beaches. But, how much of that will affect Australia?

You have the American-Chinese war and that may spill over cause each side is demanding Australia side with them.

However, Australia will see a lot more fires. You will need to invent fire-ember controlling nets to protect your houses/barns. Use the salty water underground to put out the fires.

Two big things will bring down the prices for Australia. Deaths from the plandemic and below replacement birth numbers.

And the big thing will be "water where you need it." Shipping water through the sky, like how rain waters all the trees. That and free energy devices, and you can live anywhere on the island.

(Do you all like to refer to your place as a continent? I have often heard Ausies say island, but that seems more self deprecation, and maybe not something a foreigner should use.)