Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gripping personal account of Afghan and Iraq wars

The first half of the book, 'Peace', is quite interesting in describing the training of a Marine officer. This part is likely to stay with me longer than the second part, 'War'. The second part is more gripping as it describes the author's front line experience during wars. The war fighting keeps one turning the pages. The ending is hugely anticlimatic, however, and seems half-hearted. <Spoiler alert> The author decides to leave the Marine Corps just after he has proved himself a capable Marine officer. The quitting does not meet the promise of the title "making of a marine officer". In my mind, an officer is not quite made if he quits after his first promotion.