To commemorate Memorial Day, let me recommend “Matterhorn: A Novel of the Vietnam War” by Karl Marlantes. There’s little that I can add to the overwhelmingly rave reviews over at Amazon: it’s gripping, intense, and authentic. I was particularly impressed with Marlantes’s skill in portraying the choices that confronted his characters, how seemingly irrational decisions might make sense from an individual’s perspective, and how faulty information and flawed incentives could lead to tragedy.