The leaked document, purportedly a letter from one Muslim extremist to another, called it "Trojan Horse" – an operation by fundamentalists to "take over" state schools in the city of Birmingham, undermine the headteachers and ensure they were "run on Islamic principles".

They had already, they claimed, caused "a great amount of organised disruption" in the city and "as a result now have our own academies and are on the way to getting rid of more headteachers and taking over their schools. Whilst sometimes the practices we use may not seem the correct way to do things you must remember that this is 'jihad' and as such using all measures possible to win the war is acceptable."

The leaked documents describe how the alleged plotters stir up "hardline" parents to attack headteachers with allegations that they are "corrupting their children with sex education, teaching about homosexuals, making their children pray Christian prayers and [carrying out] mixed swimming and sport".

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