[Skybird]

While I see a military collision with China including Australia as absolutely realistic, I doubt that a Chinese invasion of the Australian continent plays a role in it. It will come under attack, bases, installations, industry, yes, but why wasting troops and putting them at risk by invading such a big, empty place? As far as I believe I understood their military strategic goals, they do not need the northern coast for own bases. Conquesting of clearly foreign, distant territories is not what they are after.