This book is timely. Debates around the offensive use of cyber power are being spoken of commonly, but without being anchored in any kind of definition as to what is and isn't war. This book is cogent. It explains, in chapters on Weapons, Subversion, Espionage and Sabotage the kinds of effects that are commonly called 'Cyber War'. And it is contextualised in the history of war studies, which means so-called Cyber War is located in relation to what we intuitively understand to be war. And in this - war being the power to cause violence, hurt and effect the human body - there is a bridge to be traversed between the actual effects of cyber weapons, and the metaphor of war.
The book reads well. Individual chapters hold up on their own terms as articles on each theme. The most essential chapters, to my reading, were the first two, and the last. Those wishing for a summary of the argument, I would direct you here.
Well done, Dr Rid. I hope this book provokes the debate it deserves. As ever, what lay persons may read as a debate on mere semantics by academics can have real world impact. Unless we know and understand what constitutes an 'act of war' in the cyber realm, future generations of policy makers and lawyers will be left grappling in the dark for appropriate responses.