One of the best books I've ever read dealt with this topic.
At Hell's Gate: A Soldier's Journey from War to Peace
It's about a guy who's father was a ww2 vet, who drowned his trauma with alcohol and family abuse, and the his son the writer who became a Vietnam vet and started on the same path until he became a buddhist monk under Thich Nhat Hanh, the famed Vietnamese buddhist master.
It is beyond fascinating and really sheds so much light on this topic. More than anything else I've read. Really can't recommend it enough. I feel like every soldier and their family needs to read it especially. Very easy to read as well.
https://www.amazon.com/At-Hells-Gate-Soldiers-Journey/dp/1590302710
Thanks much for your kind comment. Is this the book?: https://www.amazon.com/At-Hells-Gate-Soldiers-Journey/dp/1590302710/ref=mp_s_a_1_3?dchild=1&keywords=claude+thomas&qid=1620756638&sr=8-3