OT - Aussie Marines!

[Targan]

Originally Posted by Sanjuro

It would be theoretically possible for an invader to land a force somewhere on a remote part of Australia's coast, with the plan of expanding the beachhead before defending forces can be brought to bear- but if Oz has a unit capable of landing on the next beach, ready to fight, that invasion becomes much less practical.
Ok, setting up an amphib brigade ready to invade yourself would be unusual, but it seems (to this ignorant foreigner, anyway) a novel and effective solution to some of Australia's unique defensive problems.

Well the theory in your statements is sound and you do seem to have an understanding of Australia's geographical challenges. The thing about seizing and holding a beachhead in a remote part of Australia is that it begs the question, to what end? What do you do with the piece of Australia you're holding? Getting from place to place over large parts of wilderness Australia you'd need to effectively re-embark and invade all over again. It's a strange place, Australia, especially northern Australia. Pockets of civilization surrounded by thousands of miles of nothing. The vast majority of the population and infrastructure along the east and south-east costs.