Behavior and organizational structure of ISIS: the most important weaknesses and strengths

It seems that ISIS has not disappeared and its activities in Afghanistan shows that this terrorist group is dangerous yet. On the experience of Islamic State in Iraq and Syria we can ask an easy question: what is the ISIS structural weaknesses and strength? The researcher of this article has asked this question from military experts and some businessmen that have evaluative experience from ISIS territory. According to deep dialogue of writer with them the most weakness of that group is anachronism or its birth in a new time. But ISIS has a huge strength that the most important of them is its Ideology and violence industry. Author concludes that ISIS can revive in some regions, spatially I countries that have corrupted or failed state.