From its birth in the late 1990s as the jihadist dream of terrorist leader Abu Musab al Zarqawi, the Islamic State has grown into a massive enterprise, redrawing national borders across the Middle East and subjecting an area larger than the United Kingdom to its own vicious brand of Sharia law. This is not another terrorist network but a formidable enemy in tune with the new modernity of the current world disorder. One of the world’s leading experts on terror financing Loretta Napoleoni argues that Ignoring these facts is more than misleading and superficial, it is dangerous. ‘Know your enemy’ remains the most important adage in the fight against terrorism. Here is a book extract.