There are only two ways to deal with ISIS and similar terrorist networks you can either totally destroy them or leave them constantly on the defensive whereas both options have positive and negative ramifications. If you eliminate them from the face of the earth there will be plenty of collateral damage that might inspire future terrorist groups to formulate and/or grow while if you keep them on the defensive it will be a continual cost that you will have to bear. I believe though keeping them on the defensive might be the better option as long as the will is there for the following reasons (below). What do you think?
(1) It will prevent them from attempting an offensive operation because they’ll always be on the defensive.
(2) Those enemies of decency, democracy and freedom will continue to join their network and will be eliminated on a constant basis in one central location without any chance of expansion.
(3) There might be a chance for a civil war in the ISIS controlled areas once the victims of their injustice have an opportunity to fight back. Since ISIS will always be on the defensive it will have less internal control as if it were stable.