Kill them all. That's currently the president's directive to the Armed Forces of the Philippines and the police. He even snubbed the offer for a dialogue coming from the mother herself of the Maute brothers, the main group leading the attack. President Duterte's decision not to accept the offer for a talk was simple: he has several policemen and military killed already. There is no need for a talk then. The terrorists have to suffer no less than death.
He is right. There should be no dialogue with the ISIS. What is the use of dialogue? They will just get more time to prepare themselves for an even bigger battle. That should not be allowed. They must be destroyed in the bud itself.