Australian militants Abu Yahya ash Shami and Abu Nour al-Iraqi identified in ISIS recruitment video - ABC News (Australian Broadcasting Corporation)

Australian militants Abu Yahya ash Shami and Abu Nour al-Iraqi identified in ISIS recruitment video - ABC News (Australian Broadcasting Corporation)

"They are trying to target youth in the West with a very simple message, a very evocative message," Dr Rodger Shanahan, a non-resident fellow at the Lowy Institute of International Policy, said.

Yesterday Foreign Affairs Minister said the Government believed 150 Australians have been or are currently overseas fighting with extremists in Iraq and Syria.