Rock of the Marne.
I have watched 1917 twice, and it does not even compare to this book. Rock of the Marne is way better than that movie. There are a lot of different characters with first hand accounts, the excitement, the twists and turns, it would make an awesome movie. I cannot imagine the terror these American soldiers felt. They were so brave to hold off the Germans and save Paris, while the French abandoned their posts and retreated, the Americans stayed. One of my favorite sections was a part where a bayonet instructor/trainer was in the midst of hand to hand combat with Germans coming over the railroad track berm. This fellow soldier watched him/instructor dodge a bayonet thrust from a German, swipe with bayonet across the German’s throat and then follow through with a butt thrust that decapitated the German. The fellow soldier vomited as he watched this...the way the author Harris writes describes it way better than my summary.