In case of war, are Australian men (and any women) forced to perform military service?

Soooooo this is a hypothetical case my husband (39 Aussie) and I (30, Latina) have been arguing for 5 mins and I couldn't find anything definitive on Google. So I ask Reddit:

If tomorrow X country declares war against Australia, are cilivian Australians forced to join the military to defend the country in the extreme case the military gets killed off or smaller and the war drags along for years? I mean, there's a moment where the government has to recruit civilians right?

My husband says that in such case, aussies are free to choose because freedom and whatnot and the country also has the support of the UK and stuff.

What do you guys think?

PD: This is a stupid conversation we're having while we're having lunch lol

Edit: guys... I think it's pretty clear to all that Australia's conscription was abolished way back when at this point lol. My point was: if it were ever to happen, would the government establish a conscription to force you? If it does, would you join or flee or go to prison? Who are your allies? Who would be your enemies? I'm here already imagining the poor roos swinging punches around being domesticated to fight lol 😂 and also if you were to flee? How? Where? This is an island! I'm having a whole movie in my head.