If you are at all interested in WWI or the US Army and it's traditions, read this book. It was written in the 30's based on documentation and interviews with the living participants. One of the writers was a correspondent. They spin a very lively tale about the "Lost Batallion", a group of men that advance "without regards to their flanks" during an offensive in WWI and get cut-off.
The story is grand. It's filled with heroism, cowardice, triumph and tragedy.