Australian Prime Minister Tony Abbott said on Thursday that Jihadists of the Islamic state were burning in the Nazis.
"The Nazis made a terrible evil, but they had a sufficient sense of shame to try to hide them. They praise their evil. That's unbeatable, "Abbott said on Australian radio.
"They behave like medieval barbarians, just as they send it to the world. This evil gives an additional dimension, "Abbott said, and stressed that he must do all he can to get ISIL defeated.
Abbott said at a time when the Australian government considered the United States' request to broaden its contribution to the Islamic State and join air strikes on their targets in Syria.
The Australian Prime Minister announced that the decision will be taken next week.
Australia is part of an ISIL-led coalition in Iraq, along with America, Canada, Denmark, France, Jordan, the Netherlands and Britain.
In a coalition that, alongside American leadership in attacking jihadists in Syria, are Bahrain, Canada, Jordan, Saudi Arabia and the United Arab Emirates.