It’s even more interesting: the rise of ISIS was to a large extent propelled by Al-Qaeda and ex-Iraqi military being emprisioned together in Iraq by the US when it occupied it.
Through their own use of force against Iraqis simply for doing their job in the Iraqi State, the US as an occupying power created an even worse beast than the one they put down, because doing it led them to cooperate with Al-Qaeda.
It has huge parallels with Israel as an occupying power in Palestine using unrestrained violence against people for simply being Palestinians and should inform us of just how unlikely this is to lead to the end of Hamas-like groups there.