I totally agree with Prime Minister Tony Abbott.

If so-called "Australians" fighting with Islamic State terrorists and inciting terror across the globe through their heinous and abhorrent actions in the Middle-East are killed by the West's military mission, then so be it.

It's an insult to refer to these evil beings as Australians.

About 60 Australians are reportedly fighting with ISIL and other militia groups, with 100 more in Australia supporting their pointless cause.

The federal government should revoke the citizenship of any such person as soon as they leave the country.

Those within our borders funding, plotting and recruiting extremists to partake in such hostile activity should also be deported.

No "Australian" I know would participate in such cowardly crimes, and those who do don't deserve to live here.

The government's decision to send 600 air force personnel and specialist military advisers to join the US and its allies in Iraq and Syria is well justified.

The butchery of guiltless journalists and aid workers is barbaric and these brainwashed militants must be erased.

Especially after 15 people were arrested in Sydney and Brisbane for planning to "shock, horrify, and terrify" the nation by publicly committing demonstration killings.

Australia's hand will cost about $500 million a year, however, ending this behaviour for harmony's sake is priceless.

I only urge Russia and China to join the 30-country coalition in defending world peace.

Greens leader Christine Milne doesn't believe Australia should be involved in the counter offensive based on consequences of the Iraq war, saying we are again "blindly following the US".

How should we attempt to prevent genocide and protect the free world under threat by these 30,000 mentally unstable militants, Ms Milne?

Send out invitations for a round table discussion over a nice feast? Please!

Political leaders have been hesitant to call the air strikes a war.

But call it what you may, this is a necessary action.