The aim of this report is to expand understanding of the FTF phenomenon in Syria by examining why the interviewees chose to act in the way they did. The report records the reasons individual FTFs have given to explain their decision to leave their countries of residence or nationality to join armed groups. It also records their reasons for leaving these groups and returning to their countries of residence or nationality before achieving the goals and objectives they had set themselves. Finally, the report seeks to draw conclusions as to the threat that returning FTFs may pose in the future.