There are strong arguments making the case for the persistence (and indeed the intensification) of U.S. airstrikes against ISIS targets. But equally there are strong arguments, less frequently heard perhaps, for why the United States should not continue, and should certainly not intensify, those airstrikes.
The faith community must remind the world that evil can be overcome, and that individuals involved in evil systems and practices can be redeemed. But how to overcome evil is a very complicated theological question, which requires much self-reflection. In trying to figure out how to overcome evil, it is often helpful to first decide how not to.