1. I don't think the statistical evidence supports the theory that "airpower alone" is a practical strategy; now if we're looking at producing specific political outcomes then I suppose that, in theory, under some conditions airpower alone could be successful. I'm not aware of any examples of this, however.

2. Is ISIS a 'system' or a 'network'? Does the distinction matter? In a system, you destroy a component or sub-component in order to produce failure in the system as a whole. In a network, if you destroy a component or sub-component, the rest of the network still operates. And there is an argument to be made that any organic organization is not a system, but a network.

3. The problem with ISIS is that it represents a fundemental contradiction in American foreign policy in the Middle East and the difficulty is in deciding which component of our policy should be discarded.