I agree with those that say you need to take the financial backers out, economically if possible, militarily if necessary, and if their country raises a stink, agree with them that a casus belie has been committed, but do they really want to go there?

That being said, and with the understanding I am not advocating this. Getting rid of ISIS is not going to solve the problem, something else with the same goals will pop up in a couple of years.

This area has been in conflict since biblical times, at least, there must be something in the water, so simply killing off any given group is not going to accomplish much.

The best chance of stopping this from happening again someone needs to start at the northeast coast of the Mediterranean Sea and draw a line to the bottom of the Sinai Peninsula and start moving east, killing every living thing higher than a bacteria until they hit the Hindu Kush, then kill everyone that tries to resettle the area.

Will this stop political violence on a world wide basis, no, it will not even keep people from resettling the land, but we will not have to worry about these particular jokers ever again.