How many members are die hard fighters who have travelled to the region to join them, how many joined as they felt they had to ether because through threat or simply to survive due to monetary gain as apparently there fighters draw a wage.
I would not only target the fighters but would concentrate more on there equipment, military and industrial to disable there military capability and ability to generate income and stop them from resupplying them.
Small arms would be an issue as Kalashnikovs can be easily knocked up in a small workshop but tanks and more significantly advanced equipment should be harder to come by and easier to cut off.
Back to my first point with regard to the fighters how many would fight to the last if certain defeat was looming and how many would desert given the opportunity to or had the money dried up.
And yes I do feel safer now they have been recognised to be a serious threat and now know they will not be allowed achieve there ultimate goals whatever it eventually takes.
Also there was an expert (what made him an expert I don’t know) on the radio saying that due to the ease of being able to get your hands on guns in America to expect more lone wolf/nutter/terrorist gun attacks there and due to it being much harder for people without direct contact to terrorist organisations or organised crime here to get firearms to expect more lone wolf/nutter/ terrorist knife attacks here.