Defected from ISIS or simply returned, and for how long?-challenges for the west in dealing with returning foreign fighters

Many of the 38,000 foreign fighters ISIS has managed to attract to Syria and Iraq will return home. As increasing numbers of ISIS cadres flee the battlefield, some as defectors and others as returnees still aligned with ISIS' goals and ideology, the challenges for the West will be how to identify and sort out true defectors from returnees, and determine if they are at risk to support again or rejoin a terrorist group. In this context, the authors of the article stress that it will be incumbent on Western states to find adequate ways of determining who among returnees is a security risk at present, who may become one in the future, specifically by returning their allegiance to this violent group, and who can be safely reintegrated into society for the long term. The authors also highlight important policy alternatives for dealing with returning foreign fighters who will continue to pose both an immediate security threat and a long-term challenge.