Spoilers herein, but then, it's not a mystery novel. I stumbled on this in a used book store in Japan. For $2, a good read. It captures the growing ambivalence of a young man who evolved, not like me in Berkeley, California, but in the political innocence of white Nebraska, within a family with a military heritage. Me, I remember emerging from a daytime showing of "Platoon" around 1980 in tears, looking around at my spiritual hometown and appreciating what it had saved me from - a shitshow of stupid mortality and slaughter. Kerrey was not so lucky, though luckier than my brilliant high school friend Henry Wright, who turned down a scholarship to M.I.T. to attend the Naval Academy, then train as a paratrooper, only to get whacked out his first month in Nam. Kerry just sustained a terrible leg injury (he lost it), but the downside of his heroism leading his men also involved, apparently, collaterally blowing some village children away. He woke up to the wrongheadedness of the war, but accepted his Medal of Honor from Nixon so as not to disrespect his brothers-in-arms. The self-discipline that made him a Navy Seal also led him to the governorship of his home state.
Men go to war, always have and will again. They come home if they're lucky, fend off the nightmares that assail them in the dark, pray to their male gods and send their sons off to the next war. Homo sapiens. Go figure.