How to really defeat ISIL (ODT)
The literature I’ve reviewed suggests that the best way totally to defeat an insurgency is to change the social and economic situation that caused part of the public to support it. Trump’s mean-spirited denial of reconstruction aid to Raqqa is a much better predictor of an ISIL resurgence than a few roadside bombs.
And that should be the question. How to reconstruct Eastern Syria so as to forestall a return of radicalism that might become a base for terrorism against, e.g. Europe? A couple thousand US troops are not what will solve the problems one way or another, at this phase of the struggle.
Trump may o may not be doing the right thing to pull out the troops. He is definitely doing the wrong thing by declining to put resources into reconstruction.