This is a detailed but readable account of an important war. The book is completely sourced, and any military historian wishing to understand the war should read it.
This book is as in-depth as you're likely to find in the US in regards to a war other than WWII or Vietnam. The book covers sweeping aspects of the conflict from the antecedents and general history of its different phases, tactics, equipment, air and chemical warfare, etc. It first breaks down the causes of the war briefly before going through a step-by-step account of the offensives and accompanying mis-steps of them. It then discusses the evolution of tactics, lessons learned, and so forth.
The book is written in a clear, informative style and includes a number of maps, graphs, etc. Some may find it a bit redundant in its conclusions or assertions at times, but for the denser among us such as myself, it is appreciated and helps us keep track of the main points among the minutiae. If you are looking for a general history of the war go read Dilip Hiro's The Longest War, which is also a well-written book. But if you want to learn everything you possibly can about the war in one easy-to carry and read package, pick up this book.