A document outlining how ISIS organises the vast territory it controls has been unearthed – and the terror group is far more sophisticated than we feared.

The leaked dossier outlines how the terror group is trying to build a state complete with guidelines for education, natural resources, industry, diplomacy, propaganda and the military.

The 24-page document ‘Principles in the administration of the Islamic State’ gives an incredible insight into the well-funded regime.

Written by an Egyptian called Abu Abdullah, outlines how kids must receive “training on bearing light arms”.

He also calls for a single identity for the terror group to unite both foreigners and locals and makes the case for establishing independent “factories for local military and food production”.

The report, which was obtained by the Guardian, shows an unprecedented level of sophistication.

Charlie Winter, a senior researcher for Georgia State University told the newspaper: “Far from being an army of irrational, bloodthirsty fanatics, IS (Islamic State) is a deeply calculating political organisation with an extremely complex, well-planned infrastructure behind it.”

The terror group’s horrific indoctrination techniques were laid bare in a recent propaganda video showing a young boy whose mother was raped and his father killed by ISIS.

He is being turned into a cold-blooded killing machine by the terror group.

The youngster has appeared in a new ISIS propaganda video executing a person in Syria, reports Mosul Eye, a group documenting life in the Iraqi city.

In a statement, the group said: "ISIS kidnapped this child first thing when it took over Sinjar, and they raped his mother and sisters and killed his father and brother.

“He is one in a large group of children that ISIS kidnapped. ISIS turned this innocent child to a killing machine.”

•Excerpted from a Daily Mirror report. Photo shows ISI fighters during training.