After years of war against terrorism, led by the United States and its allies, mainly against Al Qaeda and its international network, today the West is to deal with an enemy of a very different caliber and capabilities: the ISIS. With a strong economy and prosperous, advanced media, well-equipped troops and an unusual ability to proselytize among young Western Muslim and elsewhere, today the Islamic State is the biggest threat to the future of our society. In this book deepen the various aspects that make up the ISIS universe, from its origins to key people, allies, economics, the media, the foreign fighters, to decipher the next targets of the Caliphate. It also analyzes the war against terrorism conducted by the West, not failing to mention the gaps and uncertainties that have characterized the last years, and trying to define future guidelines of the struggle against Islamic fundamentalism.