Clausewitz is the essential grounding for all modern military thought. It's not as binding as Newtonian physics, but we have nothing else. I concur with the view that Tony Corn has either never read Clausewitz or has failed to discuss and understand what he says, with those who do.

Part of this comes from the increasing confusion caused by the current use of means which have no military purpose. (Building Schools, Aid programs etc) which fall outside the scope of the military instrument and are part of the policy, not the War. A vast amount of what is currently discussed about military thought is not military, or even "Warfare", so folks read Clausewitz and get confused.

Failing to understand Clausewitz is also central to a lot of John Boyd's insights, so again, adhering to one set of faulty argument sets you up for the next error in your OODA loop! - cheap shot, but it was too easy!!