Dump literature and food on the people. Do not punish non combatents and do not relent against mentally ill jihadists. It is sad but there are so many of them that treatment is not possible. They must be excised. Cut off all outside trade and only allow the food we drop. If that doesn't work then we can wait for them to drop their one bomb on Israel and Israel will do the job. There won't be a Middle East when Israel lets loose their 230 nukes.