He left behind his family along with his comfortable job to join the fight against the Islamic State militants in the Middle East . George Khamis , who has no military background , travelled to Iraq to join an Assyrian militia called Dwekh Nawsha , where he was based just two kilometres away from the IS danger zone in Batnaya . Appearing on Channel Seven 's Sunday Night show , Khamis , who was born in Iraq , said he wanted to join the fight against IS to protect his religious beliefs and family connections . Sharing a room with six other fighters , the father of two revealed the sleepless nights spent in their own beds with their uniforms on and guns ready to strike at any time . Scroll down for video . George Khamis left his comfortable life and fled the country to join the fight against the Islamic State . Khamis fled the country to fight against IS because he wanted to protect his family connections in Iraq . Khamis , who was born in Iraq , has lived in Melbourne for 23 years with his wife and their two young children . The foreign fighter , who has lived in Melbourne for 23 years with his wife and their two young children said his family pleaded for his return since fleeing the country . 'It 's not an easy thing to make that decision , to come all the way from there to here , far far away in a danger zone , ' Khamis said . 'Basically I 'm here to defend my land . My people against Islamic State . ' With the new terror laws introduced , Australians who join any militant causes overseas could face a lifetime behind bars should they survive and return . He left behind his family along with his comfortable job to join the fight against the Islamic State militants . Appearing on Sunday Night , Khamis has not been charged but is awaiting for further questioning by authorities . But after four weeks of fighting , Khamis booked a flight to Melbourne but was unsure whether he would be allowed back in the country as he made the long trip home . He was detained in Abu Dabi for several hours and stopped at Melbourne airport for questioning but he was eventually released while his sister waited for his arrival . Sunday Night reports Khamis has not been charged but has been told that authorities will meet with him for further questioning . 'Unfortunately it is very serious and I am still concerned , ' Khamis said . Khamis was sharing a room with six other fighters , while wearing their uniforms and guns ready to go . Khamis joined an Assyrian militia called Dwekh Nawsha , stationed just two kilometres away from the IS zone . Khamis ' distraught sister waited for him at Melbourne airport where he was detained for several hours . More than 90 Australians are understood to have travelled to the Middle East to join militant causes . The revelations come after Northern Territory Labour Party leader Matthew Gardiner reportedly fled the country to join the fight against the IS in January . The 43-year-old resigned as NT United Voice union secretary and left his wife and their two young children behind to join the Kurdish militants . Meanwhile , Sydney jihadists Mohamed Elomar , Khaled Sharrouf , and teenager Abdullah Elmir - dubbed the Ginger Jihadist - are so far the most high profile Australians to have travelled to the Middle East to fight with Islamic State . Elmir , a former Condell Park High student , was filmed on the banks of the River Tigris in Iraq last October . The 17-year-old gained notoriety when he declared that ISIS will not stop their murderous campaign 'until the black flag is flying high in every single land ' in the YouTube video . NT Labour Party leader Matthew Gardiner reportedly fled the country to join the fight against the IS in January . Ginger Jihadi Abdullah Elmir gained notoriety when he declared that ISIS will not stop their murderous campaign 'until the black flag is flying high in every single land ' in a YouTube video . Former Sydney boxer Mohamed Elomar posted photos of himself holding up decapitated heads on Twitter . Australian terrorist Khaled Sharrouf is wanted by the Federal Police for his activities in Syria . While Elomar and Sharrouf have appeared regularly in Islamic State videos . One of which included a beheading of a prisoner . Convicted terrorist Sharrouf served three years and 11 months in prison over his role in the 2005 Pendennis terror plot . He left Australia illegally last year and is believed to be fighting with ISIS . Up to 40 Australian women were also known to have travelled to Syria and Iraq to become 'jihadi brides ' or work with terrorists . More than 100 Australians are thought to have travelled overseas to fight in Iraq and Syria .
An Australian man left his comfortable life to join the fight against IS . George Khamis joined an Assyrian militia called Dwekh Nawsha . The father of two risked his life and could face lifetime imprisonment . He recently returned home to Melbourne after four weeks of fighting . Khamis was questioned at the airport but has since been released . Appearing on Channel Seven 's Sunday Night , Khamis has not been charged but is awaiting for further questioning by authorities .