The beginning of this book reminds me of war movies such as "Saving Private Ryan" and "Band of Brothers".  A main character (Vonnegut) reflects on their war efforts.  During their reflection, they explain how memories of war scar them for life as well as others.  Veterans share their stories just like Vonnegut so that people will realize that war is not healthy.  There are other ways to solve problems.  Do not get me wrong though, I think war is necessary in order to keep the world at peace.