regime who chose after being warned off not once, but twice, to drop bombs in and around raqqah. so what the united states did with this f-18 pilot is act in defense of forces on the ground that we have said for months before president trump was elected when we knew we were going to have to work with syrian democratic forces on the ground, we said we are going to come to their aid, to their defense, primarily from the air. this is not something new, not something we shied away from talking about publicly. so there's no reason this needs to become escalatory. barbara raises a good point, it gets to the iranian missiles. this is a complicated battle space. every day, we continue to see it become more convoluted. it's not simply anti-isis to other partners on the ground -- sorry, other people on the ground, other nations on the ground and other parties on the ground. the fight against isis is mixed very much in with the civil war. we look at the military effort purely as anti-isis, as does the coalition. but the rest of the people on the ground don't necessarily.