The latest yearbook published by the Internal Security Service (ISS), Estonia’s counterintelligence agency, devotes a whole chapter to combating terrorism. The annual report states that while terrorism remains a distant problem for Estonia, the growing risk to other Western countries also hits home here. Individuals who fought in Syria or Iraq are seen increasingly as a risk vector. The report confirms that people have even travelled from Estonia to fight in the Middle East. This knowledge gives pause: what does it mean to Estonian security if people from Estonia have been fighting in foreign conflicts?