prisons exacerbated and strengthened the underlying contradictions that existed within the Palestinian nationalist armed resistance, represented by the PLO, which lacked a coherent and rigidly outlined ideology. As violence was the source of national identity for these movements outside of prison, this source seemingly deteriorated once its possibility disappeared. While secularists, Marxists, and practicing Muslims united by the rifle outside of prison, on the inside distinct groups began to crystallize along diverging ideological lines.

— History of Palestinian Islamic Jihad by Erik Skare (Page 73 - 74)