Good read if you want to begin to understand the conflicts in Yemen, Iraq, Syria and Lebanon and the rise of Daesh.
http://www.al-monitor.com/pulse/originals/2015/02/salafist-sunnis-shiites-enemy-jews.html#
http://www.al-monitor.com/pulse/originals/2015/02/salafist-sunnis-shiites-enemy-jews.html#