[throwsincenotpc]

> This assumes that these groups believe their actions will lead to a direct outcome.

Daesh believes the ends of times are coming and the final battle against "evil" is near so they are just doing Allah's bidding, they believe nothing has changed since the 8th century and they are fighting "the armies of Rome". Do you really think it is rational thinking ? do you really think their can be some kind of political solution in that case ? Daesh is forcing no change upon the enemy, they want to exterminate them like Nazis wanted to exterminate the Jews.