This book is an appropriate read for someone who doesn't have any knowledge in naval tactics or military strategy. It talks about the fundamentals of a navy's role in a country's grand strategy, discusses how China's navy applies these concepts in the modern day, explains the current situation in the South China Sea, and describes tactics that the American navy will have to consider in response.
The book begins with an overview of grand strategy and the Mahanian approach to naval power. It's made clear that the first and overarching goal of grand strategy on the seas is to maintain unfettered access to trade and shipping routes. Diplomacy is a primary tool for the maintenance of trade, and naval power is a fallback only in the case that diplomacy fails. Even then, the diplomatic use of naval power has to be considered, meaning that a nation has to think about the optics of naval operations and how they would affect alliances both before and after armed conflict. In this sense, the purpose of a navy is not necessarily to sink other ships. For example, a navy can achieve its goal by looking intimidating, by engaging in humanitarian missions, by making extended warfare too expensive for enemy states, or by making it too politically unpopular for enemies to maintain bases in a disputed area. It all depends on what the country is currently trying to achieve.
In the first chapters I learned about how heavily China's economy depends on its port systems, and about the strategic importance of the first island chain, a collection of islands which completely surrounds China's coasts and which could be used to disrupt its trade systems during times of conflict. It explained to me why China so badly wants access to Taiwan and to the South China Sea, and why it has dedicated so many resources to building up its navy. Following chapters explained everything from the types of ships and subs in China's fleet, to the specifics of its missile systems, to how those assets would be used in warfare. There's good overviews of China's naval history from Mao to today. I liked the part where the book described how China's naval strategy changed as its strength grew. A lot of time is spent on describing China's current fortress strategy, where nearby waters can be protected by ships in conjunction with land-based missiles.
One takeaway from the book that I found really interesting was the extent to which optics plays a role in military tactics. For example, the book talks about China's use of matched force in the South China Sea, where they would meet the ships of weaker navies with their own weak boats, maybe even fishing vessels. If the navy responds with a larger ship, they send in a matched ship. In this way, the really big ships never have to be sent out, and China is able to gain territory without ever provoking strong international responses. Another example of considering optics arises when the book talks about the use of tripwire forces. These are forces which are never meant to be able to put up much of a fight. For instance, American troops placed in West Germany during the Cold War, or at the border of North and South Korea in the modern day, are not expected to be able to put up a defense in the case of an actual conflict. Rather, their purpose is to be destroyed in order to provide justification for a full counterattack. In this way, tripwire forces are able to act as deterrence against potential enemy attacks.
There's so much more material that gets covered by the book. I think overall the book was making the case that America's current fleet would have a very difficult time in actual armed conflict with China, both due to China's missiles having over twice the range as America's, and due to the fortress strategy employed in the vicinity of the first island chain. The book ends with a call to not underestimate China, and to build up America's naval capabilities.
Overall, I would say this book is a great read for anybody interested in military strategy. It describes a lot of aspects of grand strategy that I don't think most laypersons would have thought of before. It's also an excellent resource for anybody interested in knowing more about the current situation in the South China Sea.