Instruct: Classify an Amazon review into positive or negative sentiment.
Query: A gut-wrenching, bloody trip!

I can tell you without reservation, that this book affected me. And not all the memories were good, either. I did not wantto put it down when I started reading, but some of the scenes and action were hard to get through. I am a former Marine (1965-1969)and a pilot, but I didn't serve in combat. I did see planes crash (one right in front of me) and people were killed. This backgrounddid allow me to empathize with the characters of the book. I recommend this book if you want a hard look at what combat and militaryaviation (helicopters in particular) can entail. You can feel what it might be like to follow orders and at the same time have a gutfeeling that maybe you should be doing something else.