Yishai-Karin, in an interview with Haaretz, described how her research came out of her own experience as a soldier at an army base in Rafah in the Gaza Strip. She interviewed 18 ordinary soldiers and three officers whom she had served with in Gaza. The soldiers described how the violence was encouraged by some commanders. One soldier recalled: 'After two months in Rafah, a [new] commanding officer arrived... So we do a first patrol with him. It's 6am, Rafah is under curfew, there isn't so much as a dog in the streets. Only a little boy of four playing in the sand. He is building a castle in his yard. He [the officer] suddenly starts running and we all run with him. He was from the combat engineers.
'He grabbed the boy. I am a degenerate if I am not telling you the truth. He broke his hand here at the wrist, broke his leg here. And started to stomp on his stomach, three times, and left. We are all there, jaws dropping, looking at him in shock...
'The next day I go out with him on another patrol, and the soldiers are already starting to do the same thing."