I bought this book specifically because I found out that my grandfather was in the 25th Tropic Lightning during Vietnam. He does not talk about his experiences over there, and we were warned many times to not bring it up. I have always been interested in his personal experience, and found this book title while doing an internet search for information about his unit. I'm not really well read on the Vietnam era in history, and I learned a lot. This book was very informative as far as weaponry and how things were done. The description of many of the people who contributed to this book about the heat, the smells, the mosquitoes and other animals, the lack of a clear front, the night fighting, and the struggles with the weather and terrain was really eye opening for me. This was one of the best books I read for the February portion of my 2021 Reading Challenge, and it gave me more of an understanding of my grandfather.