THREE London schoolgirls who fled to Syria are being trained to return to Europe and carry out terror attacks, an Islamic State defector has revealed.Kadiza Sultana, 16, and Amira Abase, 15 and Shamima Begum, 15, fled east London to join ISISShamima Begum, 15, Kadiza Sultana, 16, and Amira Abase, 15, went missing from their east London homes in February to make the journey to Syria, where they joined the Islamic State (IS or ISIS) terror group.A senior female ISIS commander, who calls herself Um Asmah, has revealed she delivered the girls herself to a base in the jihadists' self-declared capital Raqqa for a four-month "special missions" training regime.The 22-year-old defector, who left the brutal extremist group just days ago, said she was the first person to make contact with foreign girls crossing the border and her role was to introduce them to life under ISIS's strict and terrifying regime.Talking to Sky News, in her first interview since fleeing ISIS, Um Asmah said the three girls' youth and naivety surprised her, but added that they were happy – despite the trio being unprepared for having to permanently wear a veil.She described how one of the schoolgirls showed her face to a driver, which earned her an immediate telling off and a lecture on etiquette.Um Asmah, whose relatives are senior ISIS commanders, said foreign ISIS recruits are taught to fight and oversee missions in Syria and Iraq, but with a long-term plan to travel back to Europe and carry out attacks.What may come as a slight relief to their concerned parents, the three girls have most likely not been married off to Isis fighters "unless they wanted to", she added.However, she does not know where the girls are now and said they will "never" go home and are more likely to "die in Iraq or Syria".In an insight into the workings of the group, Um Asmah revealed ISIS foreign fighters work shifts at the group's propaganda headquarters in an internet café, coordinated to timezones around the world where they have influence over specific nationalities.She said ISIS has a well-structured grooming system that psychologically targets vulnerable young people, like the three British girls.Speaking from Turkey, Um Asmah added: "IS is not stupid, they have educated people who know how to deal with the psychology of others, how to deal with the human being. All these are in IS."They have ways to attract people - especially foreigners. Otherwise young British people wouldn't come and say they will change the flag on Buckingham Palace."IS have the ability to manipulate the minds of young people. If they can convince foreigners, it is even easier to convince Arabs and Syrians."They have freedom and everything is available - they have no need to come to Syria but they do."It also emerged today that highly academic teenage British twin sisters, Salma and Zahra Halane, 17, from Manchester, are at the centre of a "cluster of British women" within ISIS grooming others online.The duo, who are thought to have followed their brother to Syria, are responsible for using social media and a "warped feminism" to draw girls to ISIS with the promise of an Islamic utopia, a sense of belonging and "a brave and strong husband", research by the Institute for Strategic Dialogue think tank and King's College London said.The defector revealed to Sky News the three girls will most likely die in Iraq or SyriaDefector Um Asmah is now on the run and says she is a dead woman if she ever returns to Syria and is living in fear of Isis tracking her down.She said: "I am a traitor and an unbeliever now. I am scared every day, every minute and of everyone I meet."I am a young girl. I want to live my life, I want to travel, go to cafes, meet friends like any normal girl."She added that the London trio's fate has already been decided and said: "Everything is already decided for you and you cannot evade it or refuse it."You cannot have a mind of your own you have to follow their orders."28 May 2015 tinyurl.com/qhc25t3