A recent CBS interview with militants from the Islamic State (IS, aka ISIL or ISIS) that were captured by Kurdish fighters in northern Syria reveals an insight into the group’s tactics in getting some people to join their ranks and in carrying out atrocious acts against civilians.
https://www.youtube.com/watch?v=MYdBmnHG_ac
One of the captured fighters is a 15-year-old boy who admits to fighting with the group after ISIL invaded his hometown and gave him two choices: either join them or get beheaded. He also said that they gave him an anti-anxiety drug Zolam that – according to him – makes one lose his/her mind.
Source: CBS
