Simple ban islam, if you cant have a peaceful region then dont have one.
May sound bad but this is the fix.
They will go underground and it will be harder to spy on them.
You have to educate people in the Middle East as this is where this ideology originates.
There are similarities between Islamist terrorist networks and criminal gangs. You probably can use
the same techniques to fight it.
There is absolutely no similarity with the community thugs and thieves with a community of Muslim terrorists. Muslims have United on a religious basis and such communities are more difficult to implement agents.