A revelatory look inside the world's most dangerous terrorist group. Initially dismissed by US President Barack Obama, along with other fledgling terrorist grou

Though capable of staging spectacular attacks like 9/11, jihadist organizations were not a significant force on the ground when they first became notorious in t

A year ago, few people had heard of ISIS-- today, they are a major terrorist threat. Despite numerous warnings from intelligence services, ISIS's rise to power

The Islamic State, known as ISIS, exploded into the public eye in 2014 with startling speed and shocking brutality. It has captured the imagination of the globa

A comprehensive history of ISIS based on insider accounts and secret communications few outsiders have seen