Oh Gawd !

Yep Is Mise, If we are ever again stupid enough to elect a redhead, we deserve what we get, & must accept their rulings, even if we bitch a little while doing it.

Bazz,

Then there was "....The Ustasha was a Croatian fascist movement that had been allied with Germany in World War Two and had active networks in Australia. Dreaming of overthrowing Tito’s communist regime, Ustasha supporters bombed Yugoslav diplomatic buildings and social clubs throughout Australia in the 1960s and 70s. In 1962 and 1973 they launched unsuccessful military raids into Yugoslavia."
http://andrewzammit.org/2013/03/23/the-murphy-raid/

With the tacit blessing of the Federal Liberal Government, whilst in power and while in Opposition. and the participation of Australian citizens.

The Scottish Republican Army also had a cosy relationship with the Liberals, the last that I heard of them was when they took a bomb that failed to detonate back to their headquarters in Glasgow, to salvage the components, and it blew up.

Wobbles
I think you are denying the right of society to take any preventative measures to protect itself when you say "Considering we are not actually "at war" with an independent State it's a bit of a legal problem - but it seems that now you're deemed guilty and have to prove your innocence."
My proposition does not find anyone guilty of a crime it just says to prospective jihardists that your behaviour indicates you have a desire to harm us and accordingly you have two options 1) Depart Australia and acknowledge you cannot return to harm us directly or 2) Stay in Australia and enjoy our great country but recognise your past actions mean you are likely to remain under serveilance until it is clear that you have formed a more positive view of life in Australia.
Discussing other "wars/noble causes" is fine but the government of the day is surely obliged to condider what actions (if any) need to be taken to mitigate the risks to society posted by individuals expressing hatred of our society.
Tolerance should not extend to accepting intolerance of the core values of our society. These core values include democracy, the rule of law and the right to live peacefully in a secular society.

Is mise,
The Liberal's support for Anti Communist irregulars in the 1960's and '70's is no different to their providing supplies and close air support for the Marxist Kurdish militias at Sinjar, it's simply a case of my enemy's enemy is my friend.
Communism was a threat to Australia in the 1960's, Islam is a threat today, it just so happens that the most effective force on the ground in northern Iraq are Marxist-Leninist militias. There's no hypocrisy or double standard in what the government is doing, the only debate is over whether they should be intervening at all.
There was an interview published yesterday in the Age with the head of Iraqi police intelligence, he's planning on physically exterminating IS fighters, he said that killing every single one of them is the only way to take the provinces back, so that's the operation the Australian government has signed up to, search and destroy.

Well Jay, survival puts a different complexion on things.